St. Louis Screw & Bolt (SLSB LLC) is a historic bolt manufacturer founded in 1887 that stocks a wide variety of structural fasteners. SLSB aims to be a one-stop shop for structural fastener projects by offering inventory, manufacturing capabilities, and technical support. They provide bolts, nuts, washers, and tools for construction applications.
02-PED121-Lecture 3- Lathe Machines and Mechanisims-handouts.pdfDalia Nabil
The document provides information about the components and mechanisms of a lathe machine. It describes the main components of a lathe including the headstock, bed, tailstock, carriage, feed rod, and lead screw. It explains the functions of each component such as how the headstock holds the workpiece, how the tailstock supports long workpieces, and how the carriage and feed mechanisms control tool movement. It also discusses various workholding and toolholding methods on a lathe like chucks, collets, mandrels, and between centers. Finally, it lists some key specifications to consider when selecting a lathe.
This presentation provides technical background on bolting and welding structural steel connections. It discusses the benefits of structural steel construction and unique aspects of steel erection. The presentation covers common bolt types and sizes, bolted joint types including bearing and slip critical, installation methods like snug-tightening and pretensioning, and weld types and inspection methods. The objective is to provide construction managers and contractors knowledge on properly connecting structural steel.
The document provides information on heat treatment processes for steel, including:
- TTT diagrams show the relationship between temperature and time for decomposition transformations under isothermal conditions.
- Construction of TTT diagrams involves isothermally heating and quenching many small steel specimens to determine reaction curves.
- Common heat treatments include annealing, normalizing, hardening and tempering. Annealing relieves stresses while normalizing refines grains. Hardening forms martensite to increase hardness but tempering is required afterwards to improve properties.
This document discusses various carbon and alloy steels. It begins by classifying steels based on their carbon content as plain carbon steels including low carbon (<0.3%), medium carbon (0.3-0.6%) and high carbon (0.6-0.95%). Alloy steels are then introduced which add other elements to iron to improve properties. The AISI classification system is explained which uses a 4 digit numbering system relating to steel composition. Examples of common carbon and alloy steels are given. Heat treating processes like annealing, normalizing and quenching+tempering are defined in terms of their effects on microstructure and properties. Specific alloying elements used in steels like manganese,
The document defines jigs and fixtures, their purposes and key differences. Jigs hold and guide tools during machining operations while fixtures only hold workpieces. Both aim to provide repeatability, accuracy and interchangeability in manufacturing. The document also describes various types of jigs and fixtures used for different machining processes like turning, milling, grinding and their elements.
The document discusses heat treatment processes for altering the mechanical properties of metals without changing their shape. It begins with an introduction to how a metal's microstructure and properties are dependent on its crystal structure and composition. It then defines heat treatment as the controlled heating and cooling of metals to achieve desired non-equilibrium structures and properties. The objectives of various heat treatments like softening, hardening, and stress relieving are described. Typical heat treatment cycles involving heating, holding, and controlled cooling are outlined. Time-temperature-transformation diagrams and continuous cooling transformation diagrams are introduced as tools for determining appropriate heat treatment parameters and expected microstructures. Factors affecting critical cooling rates and means of controlling grain size are also summarized.
This chapter discusses sheet metal forming processes and equipment. It covers topics like shearing, bending, deep drawing, and other specialized forming techniques. Shearing is used to cut sheet metal blanks from larger sheets. Process parameters like punch and die shape, clearance, and speed affect shearing quality and forces. Bending involves plastic deformation by compression and tension forces. Minimum bend radii and springback compensation are discussed. Deep drawing uses a punch and die to form a sheet metal blank into a cup shape by stretching the metal. Factors like wrinkling, drawability, and blankholder forces are addressed.
This document discusses the design of progressive and compound dies for metal stamping. It begins by explaining how a progressive four-up die can be used to meet production requirements of 1,000,000 washers per week. It describes layouts for multiple parts per stroke, including the use of angled strip layout. It also discusses elements like finger stops, automatic stops, pilots, and punch plates that are used in progressive die design. Finally, it provides an overview of compound and combination dies, which perform multiple operations in a single stroke.
02-PED121-Lecture 3- Lathe Machines and Mechanisims-handouts.pdfDalia Nabil
The document provides information about the components and mechanisms of a lathe machine. It describes the main components of a lathe including the headstock, bed, tailstock, carriage, feed rod, and lead screw. It explains the functions of each component such as how the headstock holds the workpiece, how the tailstock supports long workpieces, and how the carriage and feed mechanisms control tool movement. It also discusses various workholding and toolholding methods on a lathe like chucks, collets, mandrels, and between centers. Finally, it lists some key specifications to consider when selecting a lathe.
This presentation provides technical background on bolting and welding structural steel connections. It discusses the benefits of structural steel construction and unique aspects of steel erection. The presentation covers common bolt types and sizes, bolted joint types including bearing and slip critical, installation methods like snug-tightening and pretensioning, and weld types and inspection methods. The objective is to provide construction managers and contractors knowledge on properly connecting structural steel.
The document provides information on heat treatment processes for steel, including:
- TTT diagrams show the relationship between temperature and time for decomposition transformations under isothermal conditions.
- Construction of TTT diagrams involves isothermally heating and quenching many small steel specimens to determine reaction curves.
- Common heat treatments include annealing, normalizing, hardening and tempering. Annealing relieves stresses while normalizing refines grains. Hardening forms martensite to increase hardness but tempering is required afterwards to improve properties.
This document discusses various carbon and alloy steels. It begins by classifying steels based on their carbon content as plain carbon steels including low carbon (<0.3%), medium carbon (0.3-0.6%) and high carbon (0.6-0.95%). Alloy steels are then introduced which add other elements to iron to improve properties. The AISI classification system is explained which uses a 4 digit numbering system relating to steel composition. Examples of common carbon and alloy steels are given. Heat treating processes like annealing, normalizing and quenching+tempering are defined in terms of their effects on microstructure and properties. Specific alloying elements used in steels like manganese,
The document defines jigs and fixtures, their purposes and key differences. Jigs hold and guide tools during machining operations while fixtures only hold workpieces. Both aim to provide repeatability, accuracy and interchangeability in manufacturing. The document also describes various types of jigs and fixtures used for different machining processes like turning, milling, grinding and their elements.
The document discusses heat treatment processes for altering the mechanical properties of metals without changing their shape. It begins with an introduction to how a metal's microstructure and properties are dependent on its crystal structure and composition. It then defines heat treatment as the controlled heating and cooling of metals to achieve desired non-equilibrium structures and properties. The objectives of various heat treatments like softening, hardening, and stress relieving are described. Typical heat treatment cycles involving heating, holding, and controlled cooling are outlined. Time-temperature-transformation diagrams and continuous cooling transformation diagrams are introduced as tools for determining appropriate heat treatment parameters and expected microstructures. Factors affecting critical cooling rates and means of controlling grain size are also summarized.
This chapter discusses sheet metal forming processes and equipment. It covers topics like shearing, bending, deep drawing, and other specialized forming techniques. Shearing is used to cut sheet metal blanks from larger sheets. Process parameters like punch and die shape, clearance, and speed affect shearing quality and forces. Bending involves plastic deformation by compression and tension forces. Minimum bend radii and springback compensation are discussed. Deep drawing uses a punch and die to form a sheet metal blank into a cup shape by stretching the metal. Factors like wrinkling, drawability, and blankholder forces are addressed.
This document discusses the design of progressive and compound dies for metal stamping. It begins by explaining how a progressive four-up die can be used to meet production requirements of 1,000,000 washers per week. It describes layouts for multiple parts per stroke, including the use of angled strip layout. It also discusses elements like finger stops, automatic stops, pilots, and punch plates that are used in progressive die design. Finally, it provides an overview of compound and combination dies, which perform multiple operations in a single stroke.
This document discusses heat treatment methods for controlling material properties of metals and alloys. It describes how heating metals to certain temperatures can cause phase changes that modify microstructures and influence properties like strength, hardness, and wear resistance. Specific heat treatment methods are outlined, including hardening, annealing, normalizing, and tempering, and how they impact phase transformations and material properties on iron-carbon phase diagrams. Surface hardening techniques are also mentioned.
Ammonia Plant Technology
Pre-Commissioning Best Practices
GBHE-APT-0102
PICKLING & PASSIVATION
CONTENTS
1 PURPOSE OF THE WORK
2 CHEMICAL CONCEPT
3 TECHNICAL CONCEPT
4 WASTES & SAFETY CONCEPT
5 TARGET RESULTS
6 THE GENERAL CLEANING SEQUENCE MANAGEMENT
6.6.1 Pre-cleaning or “Physical Cleaning
6.6.2 Pre-rinsing
6.6.3 Chemical Cleaning
6.6.4 Critical Factors in Cleaning Success
6.6.5 Rinsing
6.6.6 Inspection and Re-Cleaning, if Necessary
7 Systems to be treated by Pickling/Passivation
The Rockwell hardness test was invented in 1914 by Hugh and Stanley Rockwell. It measures the hardness of materials by applying two loads with an indenter and measuring the depth of penetration. There are different Rockwell scales that use different loads and indenters depending on the material being tested, such as scales for metals, plastics, and surfaces. The test provides a simple hardness value measurement and is widely used for quality control and material testing in manufacturing.
The document provides information on various welding processes and factors related to welding design and quality. It discusses different welding techniques, their typical applications based on production quantities, joint design considerations for minimizing distortion and stresses, non-destructive and destructive testing methods, and common welding defects such as lack of fusion, undercut, porosity, overlap and their causes.
This document provides an overview of alloying elements in cast iron and their effects. Key points:
1. Common alloying elements added to cast iron include copper, nickel, chromium, molybdenum, and vanadium. These improve properties like tensile strength, hardness, wear resistance, and creep resistance.
2. Optimal levels are around 1% copper, 1% nickel, 0.4% chromium, 0.5% molybdenum, and 0.2% vanadium. Alloy combinations can have synergistic effects.
3. Nodular irons are commonly alloyed with copper, nickel, molybdenum, and tin. Ferritic nodular
The document describes the iron-iron carbide phase diagram. It shows the different phases that appear with increasing carbon percentage, including ferrite, austenite, pearlite, cementite, and martensite. The diagram indicates three important reactions - the peritectic reaction at 1490°C, the eutectic reaction at 1130°C, and the eutectoid reaction at 723°C. It explains how the microstructure of steels and cast irons depends on the cooling process relative to these phase changes and reactions.
The document discusses capstan and turret lathes. It begins by explaining that these lathes evolved from engine lathes to allow for mass production of identical parts. The key features are that the tailstock is replaced by a hexagonal turret tool head that can hold multiple tools, eliminating the need to change tools between operations. The construction of capstan and turret lathes is then described, including the bed, headstock, turret head/saddle, cross slide, and tooling arrangements. The working principle involves automatically indexing the turret head to bring the required tool into position for each operation in sequence. These lathes can perform a variety of turning, drilling, boring, threading and other operations with high efficiency
This document discusses welding metallurgy and the structure of fusion welds. It describes the different zones that make up a typical fusion welded joint, including the fusion zone, weld interface, heat affected zone, and base material. It explains how the microstructure varies across these zones due to melting and solidification processes during welding. Factors like welding parameters, heat input, and joint geometry are described as influencing weld pool shape and grain structure. The concept of thermal severity number is introduced as a way to assess cracking susceptibility based on total plate thickness.
This document discusses sheet metal forming processes. It introduces various sheet metal forming methods like bending, stretching, deep drawing, and identifies common defects. The objectives are to describe sheet metal forming processes, discuss variables that affect formability, and emphasize defects and solutions. Various forming equipment, stresses involved, and classifications of sheet metal parts and processes are outlined over several pages.
The document provides an outline on heat treatment processes. It defines heat treatment and its purposes, discusses heat treatment theory and the stages of heat treatment including heating, soaking, and cooling. It describes various heat treatment processes like annealing, normalizing, hardening, and tempering. It also discusses case hardening techniques like carburizing, cyaniding, and nitriding. Finally, it introduces the TTT diagram and the microstructures obtained from different cooling rates.
The document discusses various types of engineering materials including metals and their classification. It begins by introducing metallic materials and their properties. It then discusses the two main categories of metals - ferrous and non-ferrous metals. Ferrous metals contain iron while non-ferrous metals do not. The document further discusses various ferrous metals like steel and its alloys. It also discusses common non-ferrous metals like aluminum, zinc and copper. The classification of materials into ferrous and non-ferrous is described. Mechanical properties testing methods like tensile testing and hardness testing are also summarized.
1. The document discusses the iron-carbon equilibrium diagram, which shows the different phases of iron as carbon content and temperature vary.
2. It describes the different phases of iron - ferrite, austenite, cementite - and how their crystal structures and carbon solubility change with temperature.
3. Pearlite, an important microstructure in steel, is a lamellar structure composed of alternating layers of ferrite and cementite that forms during a eutectoid reaction when austenite cools below 723°C.
PATTERN MATERIALS IN CASTING CLASS: BY POLAYYA CHINTADAPOLAYYA CHINTADA
This document discusses pattern materials used in metal casting processes. It begins by defining a pattern as a replica of the component to be manufactured. Common pattern materials include wood, metal, plastic, wax and plaster. Wood patterns are inexpensive but can swell or shrink. Metal patterns are durable but more expensive. Plastic patterns are lightweight, durable and provide good surfaces. Wax patterns provide high accuracy and are used for investment casting. Plaster patterns can form intricate shapes but are only suitable for small castings. The document provides details on the properties, advantages and limitations of each material type.
Iron iron carbide equilibrium phase dia gramGulfam Hussain
The document provides information about the iron-iron carbide phase diagram, including:
1) It shows the different phases that appear on the diagram (austenite, ferrite, pearlite, cementite, etc.) and the transformations between them like the eutectic and eutectoid reactions.
2) It explains how the microstructure of steels and cast irons depends on the cooling process and carbon content, resulting in structures like pearlite, ferrite, or cementite.
3) It describes how alloying elements can change the eutectoid composition and temperature, allowing the properties of steels to be tailored for different applications.
The document discusses the iron-carbon phase diagram, which maps the different crystal structures that iron alloys adopt at various temperatures and carbon concentrations. It defines various structures including ferrite, austenite, cementite, pearlite, and martensite. The diagram shows three important reaction lines - the peritectic, eutectic, and eutectoid reactions. It explains how the microstructure of steels with different carbon levels transforms during heating and cooling, resulting in different microstructures like pearlite or ferrite/cementite mixtures. The phase diagram is important for understanding the properties of steels and their heat treatment.
The document summarizes the products offered by a company that supplies and trades castor and trolley wheels. The company offers a wide range of wheels including castor wheels, trolley wheels, apex wheels, royal castors, manual trolleys, hydraulic trolleys, johnson castors and wheels, tires and wheels. The wheels are made from high grade materials and are suitable for various industrial applications. The document provides details on the specifications and features of the different wheel models.
A bolt is a type of fastener with an external helical thread that mates with a complementary internal thread, often found in nuts. Bolts are commonly used to hold objects together or position objects. There are different types of bolts including carriage bolts, eye bolts, hex bolts, and lag bolts. A nut is a fastener with an internal threaded hole that works with a mating bolt to fasten multiple parts together. Nuts come in varieties such as castle nuts, acorn nuts, hex nuts, and wing nuts.
This document discusses heat treatment methods for controlling material properties of metals and alloys. It describes how heating metals to certain temperatures can cause phase changes that modify microstructures and influence properties like strength, hardness, and wear resistance. Specific heat treatment methods are outlined, including hardening, annealing, normalizing, and tempering, and how they impact phase transformations and material properties on iron-carbon phase diagrams. Surface hardening techniques are also mentioned.
Ammonia Plant Technology
Pre-Commissioning Best Practices
GBHE-APT-0102
PICKLING & PASSIVATION
CONTENTS
1 PURPOSE OF THE WORK
2 CHEMICAL CONCEPT
3 TECHNICAL CONCEPT
4 WASTES & SAFETY CONCEPT
5 TARGET RESULTS
6 THE GENERAL CLEANING SEQUENCE MANAGEMENT
6.6.1 Pre-cleaning or “Physical Cleaning
6.6.2 Pre-rinsing
6.6.3 Chemical Cleaning
6.6.4 Critical Factors in Cleaning Success
6.6.5 Rinsing
6.6.6 Inspection and Re-Cleaning, if Necessary
7 Systems to be treated by Pickling/Passivation
The Rockwell hardness test was invented in 1914 by Hugh and Stanley Rockwell. It measures the hardness of materials by applying two loads with an indenter and measuring the depth of penetration. There are different Rockwell scales that use different loads and indenters depending on the material being tested, such as scales for metals, plastics, and surfaces. The test provides a simple hardness value measurement and is widely used for quality control and material testing in manufacturing.
The document provides information on various welding processes and factors related to welding design and quality. It discusses different welding techniques, their typical applications based on production quantities, joint design considerations for minimizing distortion and stresses, non-destructive and destructive testing methods, and common welding defects such as lack of fusion, undercut, porosity, overlap and their causes.
This document provides an overview of alloying elements in cast iron and their effects. Key points:
1. Common alloying elements added to cast iron include copper, nickel, chromium, molybdenum, and vanadium. These improve properties like tensile strength, hardness, wear resistance, and creep resistance.
2. Optimal levels are around 1% copper, 1% nickel, 0.4% chromium, 0.5% molybdenum, and 0.2% vanadium. Alloy combinations can have synergistic effects.
3. Nodular irons are commonly alloyed with copper, nickel, molybdenum, and tin. Ferritic nodular
The document describes the iron-iron carbide phase diagram. It shows the different phases that appear with increasing carbon percentage, including ferrite, austenite, pearlite, cementite, and martensite. The diagram indicates three important reactions - the peritectic reaction at 1490°C, the eutectic reaction at 1130°C, and the eutectoid reaction at 723°C. It explains how the microstructure of steels and cast irons depends on the cooling process relative to these phase changes and reactions.
The document discusses capstan and turret lathes. It begins by explaining that these lathes evolved from engine lathes to allow for mass production of identical parts. The key features are that the tailstock is replaced by a hexagonal turret tool head that can hold multiple tools, eliminating the need to change tools between operations. The construction of capstan and turret lathes is then described, including the bed, headstock, turret head/saddle, cross slide, and tooling arrangements. The working principle involves automatically indexing the turret head to bring the required tool into position for each operation in sequence. These lathes can perform a variety of turning, drilling, boring, threading and other operations with high efficiency
This document discusses welding metallurgy and the structure of fusion welds. It describes the different zones that make up a typical fusion welded joint, including the fusion zone, weld interface, heat affected zone, and base material. It explains how the microstructure varies across these zones due to melting and solidification processes during welding. Factors like welding parameters, heat input, and joint geometry are described as influencing weld pool shape and grain structure. The concept of thermal severity number is introduced as a way to assess cracking susceptibility based on total plate thickness.
This document discusses sheet metal forming processes. It introduces various sheet metal forming methods like bending, stretching, deep drawing, and identifies common defects. The objectives are to describe sheet metal forming processes, discuss variables that affect formability, and emphasize defects and solutions. Various forming equipment, stresses involved, and classifications of sheet metal parts and processes are outlined over several pages.
The document provides an outline on heat treatment processes. It defines heat treatment and its purposes, discusses heat treatment theory and the stages of heat treatment including heating, soaking, and cooling. It describes various heat treatment processes like annealing, normalizing, hardening, and tempering. It also discusses case hardening techniques like carburizing, cyaniding, and nitriding. Finally, it introduces the TTT diagram and the microstructures obtained from different cooling rates.
The document discusses various types of engineering materials including metals and their classification. It begins by introducing metallic materials and their properties. It then discusses the two main categories of metals - ferrous and non-ferrous metals. Ferrous metals contain iron while non-ferrous metals do not. The document further discusses various ferrous metals like steel and its alloys. It also discusses common non-ferrous metals like aluminum, zinc and copper. The classification of materials into ferrous and non-ferrous is described. Mechanical properties testing methods like tensile testing and hardness testing are also summarized.
1. The document discusses the iron-carbon equilibrium diagram, which shows the different phases of iron as carbon content and temperature vary.
2. It describes the different phases of iron - ferrite, austenite, cementite - and how their crystal structures and carbon solubility change with temperature.
3. Pearlite, an important microstructure in steel, is a lamellar structure composed of alternating layers of ferrite and cementite that forms during a eutectoid reaction when austenite cools below 723°C.
PATTERN MATERIALS IN CASTING CLASS: BY POLAYYA CHINTADAPOLAYYA CHINTADA
This document discusses pattern materials used in metal casting processes. It begins by defining a pattern as a replica of the component to be manufactured. Common pattern materials include wood, metal, plastic, wax and plaster. Wood patterns are inexpensive but can swell or shrink. Metal patterns are durable but more expensive. Plastic patterns are lightweight, durable and provide good surfaces. Wax patterns provide high accuracy and are used for investment casting. Plaster patterns can form intricate shapes but are only suitable for small castings. The document provides details on the properties, advantages and limitations of each material type.
Iron iron carbide equilibrium phase dia gramGulfam Hussain
The document provides information about the iron-iron carbide phase diagram, including:
1) It shows the different phases that appear on the diagram (austenite, ferrite, pearlite, cementite, etc.) and the transformations between them like the eutectic and eutectoid reactions.
2) It explains how the microstructure of steels and cast irons depends on the cooling process and carbon content, resulting in structures like pearlite, ferrite, or cementite.
3) It describes how alloying elements can change the eutectoid composition and temperature, allowing the properties of steels to be tailored for different applications.
The document discusses the iron-carbon phase diagram, which maps the different crystal structures that iron alloys adopt at various temperatures and carbon concentrations. It defines various structures including ferrite, austenite, cementite, pearlite, and martensite. The diagram shows three important reaction lines - the peritectic, eutectic, and eutectoid reactions. It explains how the microstructure of steels with different carbon levels transforms during heating and cooling, resulting in different microstructures like pearlite or ferrite/cementite mixtures. The phase diagram is important for understanding the properties of steels and their heat treatment.
The document summarizes the products offered by a company that supplies and trades castor and trolley wheels. The company offers a wide range of wheels including castor wheels, trolley wheels, apex wheels, royal castors, manual trolleys, hydraulic trolleys, johnson castors and wheels, tires and wheels. The wheels are made from high grade materials and are suitable for various industrial applications. The document provides details on the specifications and features of the different wheel models.
A bolt is a type of fastener with an external helical thread that mates with a complementary internal thread, often found in nuts. Bolts are commonly used to hold objects together or position objects. There are different types of bolts including carriage bolts, eye bolts, hex bolts, and lag bolts. A nut is a fastener with an internal threaded hole that works with a mating bolt to fasten multiple parts together. Nuts come in varieties such as castle nuts, acorn nuts, hex nuts, and wing nuts.
The document discusses different types of machine elements used for joining parts, including fasteners, screws, bolts, nuts, keys, and cotter joints. It describes various thread types like V-threads, square threads, and ACME threads. It also explains different forms of bolts, nuts, keys, and cotter joints; when each type would be used; and how they function to join parts together both permanently and temporarily.
This document discusses stress-strain diagrams and mechanical properties of materials. It includes 8 figures showing stress-strain diagrams for different material types (ductile, elastic, plastic, brittle) as well as diagrams for resilience, toughness, and creep. The document defines key points on stress-strain diagrams like proportional limit, elastic limit, yield limit, ultimate point, and fracture point. It also describes material properties including elasticity, plasticity, stiffness, ductility, brittleness, malleability, resilience, toughness, and creep. The document serves to explain stress-strain behavior and mechanical characteristics.
Plummer block, Computer Aided Machine Drawing (CAMD) of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
This document discusses the design of shafts that can experience twisting moments, bending moments, or a combination of both. It provides equations to determine the diameter of shafts subjected to twisting moments only based on the torque and material shear stress. Similarly, it gives equations for sizing shafts experiencing bending moments only based on the bending moment and material bending stress. For shafts with combined loads, it describes two failure theories and the resulting equivalent moment equations that can be used for design.
This document discusses screw jacks and includes:
1) An overview of screw jacks and how they are used to raise heavy loads through small heights using square threads for power transmission.
2) Questions about the type of thread used for screw jacks, their uses, paper sizes, title blocks, and drawing sheet layouts.
3) An assembly drawing assignment to create sectional and top views of a screw jack with a parts list and bill of materials.
Assembly of Machine vice, Computer Aided Machine Drawing (CAMD) of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
This document discusses different types of shaft couplings, including rigid couplings like sleeve, clamp, and flange couplings as well as flexible couplings like bushed pin, universal, and Oldham couplings. It describes the purpose of couplings in connecting shafts and allowing for misalignment while transmitting motion. Requirements for good shaft couplings include easy connection/disconnection, full power transmission without losses, holding shafts in alignment, and reducing shock loads. The document concludes with information on coupling maintenance through inspection and lubrication and potential failure modes from improper installation or operation beyond design capabilities.
Assembly of screw jack, Computer Aided Machine Drawing (CAMD) of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
1. Shaft couplings are used to connect shafts that are manufactured separately or to introduce flexibility between shafts. The main types are rigid and flexible couplings.
2. Rigid couplings transmit torque without losses but require perfectly aligned shafts. Flexible couplings allow for misalignment. Common rigid couplings are sleeve, clamp, and flange couplings.
3. Flange couplings use separate cast iron flanges keyed to each shaft end and bolted together. The flanges and bolts are designed to transmit the torque between the shafts. Flexible couplings like bush pin couplings introduce mechanical flexibility.
The document discusses the history and development of chocolate over centuries. It details how cocoa beans were first used by Mesoamerican cultures before being introduced to Europe, where it became popular in drinks and confections. The document also notes that modern chocolate production methods were established in the 19th century to allow chocolate to be consumed on a larger scale.
The document provides step-by-step instructions for creating a Ramsbottom safety valve assembly using SolidWorks. It describes how to construct individual parts like the body, lock nut, link, pin, split pin, valve, lever, pivot, and spring. Detailed diagrams are included to illustrate each modeling step, such as using protrusions, cuts, fillets, patterns, and other features to design the various components.
This document is an Instruction manual for Computer aided machine drawing
Subject: Computer aided machine drawing (CAMD)
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
Assembly of Tail stock, Computer Aided Machine Drawing (CAMD) of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
Assembly of Connecting rod, Computer Aided Machine Drawing (CAMD) of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
The document discusses the steps to draw assembly drawings from details drawings and vice versa. It outlines examining individual part features, choosing appropriate scales, drawing views in sequence of assembly, and adding dimensions and notes. It also notes visualizing arrangements of parts in assemblies and selecting minimum views to describe parts completely. The document then provides 30 examples of assemblies and their corresponding details drawings.
Dados de Tungsteno UKO Catalogo de Presentacionesle0n311
This document provides information about tungsten carbide rolls and rollers produced by Zhuzhou UKO Precision Carbide Co Ltd. It includes details on the company, products offered such as tungsten carbide wire rolls, descaling rollers, HSS rolls, and nail thread rolling dies. It also provides specifications, drawings, grades, dimensions of the rolls, applications in rolling mills, services offered like regrounding rolls, and advantages of the mechanical wire descaling rollers.
The document provides information about various metal products offered by a company including stainless steel pipes, fittings, sheets, plates, rounds bars, hex bars, and industrial fasteners made from materials like stainless steel, carbon steel, alloy steel, nickel alloys, and copper alloys. Product information includes specifications, grades, standards, and applications. The company aims to register as a supplier of ferrous and non-ferrous metals and industrial raw materials to purchase departments.
PTI manufactures mounted bearings and power transmission products globally. They offer a broad range of metric and American standard housed units, including mounted ball bearings, spherical roller bearings, and split pillow blocks. PTI is headquartered in North Carolina and has a large warehouse and manufacturing facilities with capabilities for engineering, design, inspection, and global sourcing and production.
Get W series Slips including WK slip, WT casing slip, WZ drilling pipe slip, and WZT drilling collar slip, Suitable for onshore or offshore drilling operations.
The document describes various tools for working with pipes and hoses, including hose clamps, pipe wrenches, pliers, tube cutters, and gauges. Specifications are provided for each item, including materials, sizes available, and intended applications. A variety of brands and styles are listed to suit different piping needs.
Swagemaster manufactures and stocks a wide range of industrial products including flanges, fittings, pipes, structural beams and plates. They specialize in products for the petrochemical, oil, and gas industries. Swagemaster offers custom fabrication and design services in addition to their standard manufactured and stocked items. Their expertise is in procurement and they work with a large global network of suppliers to source items not in their direct inventory.
Ranflex Metals is an Indian company that stocks, exports, and imports a wide range of ferrous and non-ferrous metals including stainless steel, carbon steel, alloy steel, copper, nickel alloys, and titanium. They are seeking to be added to approved vendor lists to supply tubes, pipes, fittings, sheets, plates, rods and other metal products. Ranflex operates out of locations in Mumbai, India and stocks material from sources in India, Japan, Europe, the USA, and Italy. They aim to forge long-term business relationships and adhere to stringent quality control standards.
Dynamic Forge & Pipe Fitting is an Indian manufacturer and supplier of piping products established in 2011. They produce a wide range of carbon steel, stainless steel, and alloy steel flanges, fittings, pipes, tubes, sheets, and fasteners. Their production facilities allow them to offer prompt delivery of stock and custom orders to meet various international standards and dimensions. They provide fabrication and other services and encourage customers to share their requirements.
This document provides information about Posts-Smith and BOB, two manufacturing companies specializing in steel posts, barbed wire, and custom steel fabrication. Posts-Smith is the largest steel post mill in China, producing over 350 truckloads per month. It manufactures various types of steel posts as well as barbed wire. BOB specializes in heavy-duty barbed wire. Both companies offer custom steel fabrication services for agricultural, construction, and erosion control projects. They promise on-time, on-budget, and on-specification deliveries.
The document provides information on products manufactured by Keddco including swage nipples, bull plugs, and other oil country tubular goods. It lists available sizes and materials for each product, as well as specifications for threading, coatings, weld bevels, and markings. Standard, extra heavy, schedule 160, and double extra heavy weights are shown for swage nipples from 1/8" to 300" in size.
This document provides a catalog from SKF for bearings used in automotive, heavy truck, and agricultural applications. It includes summaries of bearing types like ball, cylindrical, needle, and tapered roller bearings. The catalog also lists manufacturer part number interchange listings to allow users to find the equivalent SKF part number. It encourages users to contact their local SKF representative or visit their website for more up-to-date product and promotion information.
The steel manufacturing industry has been rightly called the
backbone of the global economy by Adam Smith. The alloy steel, the carbon steel,
and many other kinds of steel with specific properties which make them unique and critical at the same time.
Hence, making them a primary requirement of most industrialists.
For more details:http://apilinepipes.com/products/api-5l-pipe/psl2/api-5l-x52-psl2/
This document is a catalog from Oshlun that provides information on circular saw blades, laser guides, measuring tools, and oscillating tool blades. It includes descriptions of product categories and individual products, specifications, comparisons of saw blade features at different quality levels, and diagrams of saw blade anatomy and tooth grinds. The catalog aims to provide high quality products at affordable prices with good customer service.
As one of the leaders amongst Manufacturers, Stockist, and Exporters of Forged Steel Flange, ASME B16.5 / ANSI B16.47 Forged Flange, We are offering competitive prices in India on A105 Forged Flange, Forged Welding Flange, Forged Blind Flange.
This document provides information on flanges, gaskets, and fasteners used for piping connections. It discusses the different types of flanges like welding neck, slip-on, and blind flanges. It also outlines standards for materials, gasket types, and threaded fasteners. Selection of gaskets depends on operating conditions, fluid compatibility, pressure, and temperature. Standards for flanges, gaskets, and bolting materials are also specified.
This document provides information on flanges, gaskets, and fasteners used for piping connections. It discusses the different types of flanges like welding neck, slip-on, and blind flanges. It also outlines standards for materials, gasket types, and threaded fasteners. Selection of gaskets depends on operating conditions, fluid compatibility, pressure, and temperature. Standards like ASME and IS codes are referenced for dimensions and specifications of piping components.
KUMARS Forge & Valves Pvt Ltd manufactures and exports steel forgings, machined components, valves, flanges, and fittings based in India. The document provides details on their product range, which includes valves in various sizes and pressure classes made from carbon steel, alloy steel, stainless steel, and other materials. It also lists forgings, machined components, fittings, flanges, forged and machined balls, and instrumentation valves as other product offerings. Dimension charts and material specifications are provided for some of their forged gate and globe valve products.
PTI Corp is a global manufacturer and supplier of power transmission and motion control products headquartered in Charlotte, NC. They offer a wide range of mounted ball bearings, drive products, and linear components. Their products include mounted ball bearings in both American standard and European housings available with different insert types like set screw, eccentric collar, and adapter mounting. They also offer these products in materials like cast iron, ductile iron, stainless steel, and thermoplastic.
Similar to St louis screw & Bolt Binder Catalog (20)
Established in the year 2012, We Chronicle Solution are the reputed trader, importer, distributor, wholesaler, supplier of a wide series of Security Products. We are famous in the market for our comprehensive products range that comprises of CCTV Cameras, CCTV Surveillance Systems and CCTVs, CCTV cables & accessories, Spy cameras & devices, Biometrics & VDPs,. In addition to the range of efficient products, we provide reliable and flexible installation services of the presented security equipment. We use quality grade raw materials obtained from our dependable and trusted vendors for manufacturing these products and make user that all the industrial guidelines are followed during and after the production process
Suvidha Services provides commercial and residential cleaning services throughout India. They have been in business since 2002 and serve over 600 customers with specialized cleaning through annual contracts. Their services include mechanized cleaning, carpet and furniture cleaning, pest control, plumbing, and more. They aim to provide high quality services using advanced tools and equipment in order to satisfy customers.
Praful Wahadude founded the SLPL Group of companies in 2000. SLPL Group engages in pharmaceuticals, construction, and tourism businesses. Specifically, SLPL is a pharmaceutical company that manufactures over 350 drug formulations, including active pharmaceutical ingredients and generics. It has a presence across Maharashtra, Madhya Pradesh, and Chhattisgarh, catering to over 21,000 physicians through hospitals, institutes, and nursing homes.
“Magnus Fitness World” counted amidst the renowned firms which are engaged in trading and supplying of quality-assured Gym & Sports Equipment. We are providing a wide range of this fitness equipment which includes Motorized Treadmill, Cross Elliptical Trainer, Exercise Bike, Manual Jogger, Home Gym Equipment, Gym Stepper, Gym Rower, Strength Equipment, Fitness Accessories, Sports Racket and Cardio Sports Watch. All these equipment are sourced from some of the reputed vendors who used ultra-grade components, raw material and tools to manufacture these products.
“Magnus Fitness World” counted amidst the renowned firms which are engaged in trading and supplying of quality-assured Gym & Sports Equipment. We are providing a wide range of this fitness equipment which includes Motorized Treadmill, Cross Elliptical Trainer, Exercise Bike, Manual Jogger, Home Gym Equipment, Gym Stepper, Gym Rower, Strength Equipment, Fitness Accessories, Sports Racket and Cardio Sports Watch. All these equipment are sourced from some of the reputed vendors who used ultra-grade components, raw material and tools to manufacture these products.
The document is a repetitive listing of "IndusTech Corporation" without any other details. It does not contain any substantial information that can be summarized in 3 sentences or less.
Kitchen Basics one stop shop for all your kitchen needs was started by Ms. Kranti Gedam with an aim to provide international quality products at reasonable prices in a somber atmosphere.
"Sujalam Consultants" established in year 1998, as proprietary consultants in the field of groundwater exploration, has now grown in terms of expertise and experience as a multidisciplinary in the field of Environment, Engineering, Geology and Mining etc.
We have successfully completed the Reaccreditation of QCI NABET in Categoery A to carry out Geological and Hydro-geological Studies for various developemental activities like Mining, Thermal Power Plants, Township etc,
Headhunt Management Consultant is a well-known staffing agency in Central India established in 1998. It is managed by experienced professionals and has 4 staff members. The agency receives job requirements from clients, searches its database and conducts preliminary interviews to identify suitable candidates. If a candidate is deemed suitable, their resume is forwarded to the client. If the client is satisfied, the agency will arrange an interview. The agency's main focus is providing candidates for cement plants due to its advisor's experience in the cement industry. It has various large companies as clients and expects clients to provide clear job descriptions to help identify the best candidates.
Industry leading 2 yr Free Replacement warranty
Long life – 5+ years
Completely maintenance free
Heat resistant
Impact resistant
Water resistant
Dust resistant
Alpha Engineering Equipments was established in 1992. We are a leading trader, supplier and exporter of Surveying and Testing Equipment in Nagpur. Our range finds extensive application in accurately identifying angles, elevation and direction, and assessing bitumen, cement and soil. Apart from these, the range can also be used to test metals, concrete, tar, fuel, rubber, leather.
The Trimble M3 total station offers reliable mechanical technology combined with powerful Trimble Access field software. It features a compact, lightweight design and provides long battery life of up to 26 hours. The Trimble Access software includes modules for topographic surveys, staking, control, and road design capabilities like importing alignments and guiding offset staking.
Alpha Engineering Equipments was established in 1992. We are a leading trader, supplier and exporter of Surveying and Testing Equipment in Nagpur. Our range finds extensive application in accurately identifying angles, elevation and direction, and assessing bitumen, cement and soil. Apart from these, the range can also be used to test metals, concrete, tar, fuel, rubber, leather.
Alpha Engineering Equipments was established in 1992. We are a leading trader, supplier and exporter of Surveying and Testing Equipment in Nagpur. Our range finds extensive application in accurately identifying angles, elevation and direction, and assessing bitumen, cement and soil. Apart from these, the range can also be used to test metals, concrete, tar, fuel, rubber, leather.
Alpha Engineering Equipments was established in 1992. We are a leading trader, supplier and exporter of Surveying and Testing Equipment in Nagpur. Our range finds extensive application in accurately identifying angles, elevation and direction, and assessing bitumen, cement and soil. Apart from these, the range can also be used to test metals, concrete, tar, fuel, rubber, leather.
Alpha Engineering Equipments was established in 1992. We are a leading trader, supplier and exporter of Surveying and Testing Equipment in Nagpur. Our range finds extensive application in accurately identifying angles, elevation and direction, and assessing bitumen, cement and soil. Apart from these, the range can also be used to test metals, concrete, tar, fuel, rubber, leather.
Alpha Engineering Equipments was established in 1992. We are a leading trader, supplier and exporter of Surveying and Testing Equipment in Nagpur. Our range finds extensive application in accurately identifying angles, elevation and direction, and assessing bitumen, cement and soil. Apart from these, the range can also be used to test metals, concrete, tar, fuel, rubber, leather.
Established in the year 2011, we, “Mechano”, are engaged in manufacturing and supplying a wide range of Material Handling Equipment and Industrial Machines. The comprehensive range offered by us includes Roller Conveyors, Industrial Belt Conveyors, Belt Conveyors, Hand Trolleys, Bucket Elevators and Horizontal Ribbon Mixers. In addition to this, we offer Paddle Mixers, Sigma Mixers, Detergent Powder Mixers, Vertical Mixers, Nylon Conveyor Belts and Rubber Conveyor Belts.
Established in the year 2011, we, “Mechano”, are engaged in manufacturing and supplying a wide range of Material Handling Equipment and Industrial Machines. The comprehensive range offered by us includes Roller Conveyors, Industrial Belt Conveyors, Belt Conveyors, Hand Trolleys, Bucket Elevators and Horizontal Ribbon Mixers. In addition to this, we offer Paddle Mixers, Sigma Mixers, Detergent Powder Mixers, Vertical Mixers, Nylon Conveyor Belts and Rubber Conveyor Belts.
2. St. Louis Screw & Bolt (SLSB LLC) is one SLSB’s experienced personnel provide service
of the oldest domestic bolt manufacturers in the before, during and after the sale by providing infor-
United States, with bolts in many well-known civil mation on the availability of structural products and
engineering projects in the US and the world. St. HONEST lead times. The structural fastener buyer
Louis Screw & Bolt stocks everything a bridge or WILL find SLSB’s combination of the country’s most
steel fabricator might need to complete a major pro- diverse structural bolt inventory and ability to
ject. manufacture specials in-house are what makes
SLSB a complete one stop source for all their
structural fastener requirements.
Structural Bolts
• A325 type I & type III • Hex Heads
• A490 type I & type III • Countersunk Heads
• A449 • Dome Heads
• A307-A & A307-B • Carriage Heads
• A354-BD • Special Heads
TC Bolts
• F1852 type I & type III • A490
• Mechanically Galvanized
Anchor Bolts
• ASTM F1554 Grade 36 • ASTM F1554 Grade 105
• ASTM F1554 Grade 55 • 304, 316 A193-B7 A193-B8 & A449
Fabricated Rod Products
• Tie Rod Assemblies • Eye Bolts
• U-Bolts • J-Bolts
Stocked Finishes
• Plain • Mechanically Galvanized
• Hot Dip Galvanized • Zinc Plated
Other grades of domestically produced steels are available for
those special needs customers might face.
Diameters from 1/2" through 4"
Up to 40 feet in length
With the ability to ship to every state in the USA and any foreign country, SLSB is a global supplier.
St. Louis Screw & Bolt is a charter member of the Industrial Fastener Institute (IFI) and
was instrumental in the passage of the Fastener Quality Act (FQA). SLSB is also an associate
member of the American Institute for Steel Construction (AISC) and the National Steel Bridge
Alliance (NSBA). SLSB’s in house quality lab is A2LA certified and CALTRANS approved.
3. STRUCTURAL BOLTS: Heavy Hex, Tension Control, Heavy Hex Nuts & Washers
ASTM A325 Type I Standard A563 Gr. DH, Gr. A, A194 Gr. 2H Heavy Hex
Nuts
ASTM A325 Type III Weathering
Direct Tension Indicator Washers ASTM F959
ASTM A490 150,000 Min. Tensile
Electric Wrenches for Shear Bolts and Heavy
A449 Gr. 5 Hex Bolts
Heavy Hex Head, Button Head Shear and Sales, Repairs and Replacement Parts
Slotted Countersunk Bolts for Wrenches
1
⁄2" through 11⁄2" in Diameter Jobsite Bolt Tension Calibration Inspections
Specials, made to customer’s drawings In House Rotational Capacity Testing
Standard and Special Lengths Available Complete Mill Traceability and Certification
In Stock in Our Warehouse Available
Plain, Hot Dip Galvanized or F436 Heavy Structural Washers
Mechanical Galvanized
4.
5. FABRICATED STEEL COMPONENTS FOR CONSTRUCTION
Anchor Bolts
Plates
Round U Bolts
Square U Bolts
Threaded Rebar
Rod Couplings
Tie Rods
Eye Bolts & Rods
Welded Assemblies
Wilson Sleeves
Threaded Studs
STEELS — ASTM F1554 Grades 55 and 105, A588, A325, A449,
A490, A354, A193
STAINLESS STEELS — AlSl Type 304, 316, 410
Nickel Alloys
⁄2 to 4" in Diameter–Any Length
1
Turnbuckles
Clevises
6. HOT DIP GALVANIZED MARINE HARDWARE
Hex and Square Head Bolts with Extra Thread
Tie Rods: 1⁄2" to 4" in Diameter, Any Length
Dock Washers
OGEE Washers
Plate Washers
All Thread Rod Galvanized
Dock Spikes, Dome Head and Countersunk Head Bolts
Lag Screws up to 11⁄2" in Diameter
Stainless Steel and Nickel Alloys
Epoxy Coatings Available
7. MASONRY ANCHORS
On the Shelf — Ready for Pickup or Delivery
Plain, Stainless Steel and Hot Dip Galvanized
For Concrete, Block or Hollow Wall Masonry
Epoxy Anchor Systems with Threaded Studs
Stocking Popular Brand Names
8. 6900 N. Broadway St. Louis, MO 63147
800-237-7059 Fax: 314-389-7510
www.stlouisscrewbolt.com
11. TONE Shear Wrench
OPERATING METHODS
• Insert bolt into the work, then put washer, turn nut
through to make primary tightening.
(Fig.1)
ᕡ Place bolt thru hole in the joining members.
ᕢ Attach washer & run up nut finger tight to the
working members.
ᕣ Fit the inner socket firmly over the bolt tip (spline).
ᕤ Engage the outer socket over the nut by pushing
the wrench.
ᕥ Pull lever switch to on. The outer socket rotates
the nut until the torque control groove in the
spline shears off, thereby achieving proper
bolt tension.
ᕦ Turn off wrench when bolt tip (spline) shears off.
ᕧ Pull the wrench back to remove outer socket from
the nut.
ᕨ Pull the eject lever on the wrench to discharge
the severed bolt tip (spline) from the inner socket.
SPECIFICATIONS
Maximum No-load
Model Torque Voltage Speed Weight Applicable
(lbf•ft) (v) (rpm) (lb.) Bolt Dia.
S-60EZA 435 Single 22(20) 13 7
⁄8"
S-90EZ 595 Phase 15(16) 19 1"
S-110EZ 747 115 16(16) 28 11⁄8"
S-80EZ 595 12(12) 18 1"
1 www.stlouisscrewbolt.com
12. TONE Shear Wrench
TONE MID-SIZE SHEAR WRENCH
S-60EZA TONE S-60EZA Dimensional Drawing
(For specifications, refer to separate chart)
SIZE RANGE 13"
5/8" Ø & 3/4" Ø A325 ASTM F1582/A325 & A490 12"
4" 8"
7/8" Ø ASTM F1852/A325
3.3"
2.4"
2.1"
6"
Accessories
1. Steel case
2. Interchangeable (-) screw driver for socket.
3. Inner socket for 3/4"
4. Outer socket for 3/4"
Subject to change through improvement without previous notice.
2 www.stlouisscrewbolt.com
13. TONE Shear Wrench
TONE HEAVY DUTY SHEAR WRENCH
S-90EZ S-110EZ
SIZE RANGE SIZE RANGE
3/4"Ø & 7/8"Ø ASTM F1852/A325 & A490 1"Ø & 1 1/8"Ø ASTM F1852/A325 & A490
1"Ø ASTM F1852/A325
Accessories Accessories
1. Steel case 1. Steel case
2. Interchangeable (-) screw driver for socket. 2. Interchangeable (-) screw driver for socket.
3. Inner socket for 1" 3. Inner socket for 1"
4. Outer socket for 1" 4. Outer socket for 1"
TONE S-90EZ Dimensional Drawing TONE S-110EZ Dimensional Drawing
(For specifications, refer to separate chart) (For specifications, refer to separate chart)
16" 17"
ø3.8"
ø2.8"
ø2.2"
ø4.5"
ø3.2"
ø2.5"
8" 9"
Subject to change through improvement without previous notice. Subject to change through improvement without previous notice.
3 www.stlouisscrewbolt.com
14. TONE Shear Wrench
TONE CORNER SHEAR WRENCH
S-80EZ TONE S-80EZ Dimensional Drawing
(For specifications, refer to separate chart)
SIZE RANGE
3/4"Ø & 7/8"Ø ASTM F1852/A325 &A490
1"Ø ASTM F1852/A325 23"
8.4"
2.1"
Accessories
1. Metal case 2.7"
2. Instruction Manual
3.8"
3. Screwdrive
4. Inner sockets for 3/4", 7/8" & 1"
5. Outer sockets for 3/4", 7/8" & 1"
Subject to change through improvement without previous notice.
6. Connector
The S-80EZ was developed for use on bridge U-ribs, truss joints, and other confined loca-
tions where conventional shear wrenches cannot be used.
4 www.stlouisscrewbolt.com
15. TONE Shear Wrench
TIPS & PROBLEM SOLVING SOLUTIONS
STAYING OUT OF TROUBLE AT THE JOB SITE
I. VERIFY BOLT TENSION AT THE JOB SITE
A) Review the basic calibrator set up as described for a bolt tension calibrator such as a Skidmore-Wilhelm.
B) Be sure that the unit is in calibration and that adapters for tension control bolts are in the unit.
C) Review the instructions for use of the calibrator and test the assembly.
D) It is recommended that the test procedure be performed three times, each time with a new fastener set
selected from the same lot intended to be used in the actual bolted connection. The actual number of
tests is at the discretion of the inspector.
II. INSTALLATION PROBLEMS
A) Bolt breaks at the threaded portion before the pintails shears off?
Answer: Most likely the torque co-efficiency value has become lower.
Possible Causes:
1) Storage conditions allowing exposure to rain, water, moisture, high humidity, temperatures over 140˚F or
similar environmental conditions.
2) Lubrication of the product beyond “as delivered” condition from the factory. (Use of oil, grease, or wax on
the product components at the job site)
3) Adhesion of oil, paint, mill scale, dirt burrs, or foreign material on the faying surfaces which may allow
rotation of the bolt, or rotation of the washer with the nut during the tightening operation.
4) Not properly making the connection “snug” tight before final wrench tightening which may allow the bolt
to rotate.
(Same as common hex bolt)
5) Possible misalignment of the connection surfaces that may prevent proper contact of the head
and faying surface.
6) Exposure to the environment over an extended period before final tightening.
B) Pintail breaks at the shear groove before joint connection is made or before specified fastener tension is
achieved.
Answer: Most likely the torque coefficiency value has become higher.
Possible Causes:
1) Storage and handling conditions allowing sand, dirt or other foreign material to accumulate on the
threads of the bolt or nut.
2) Rough handling of the fasteners that would cause nicks or gouges on the bolt and nut.
3) Exposure to environmental conditions that cause rust to form on the threads of the bolt, nut or
washer face.
4) Failure to follow AISC procedures for initial tightening in bringing all plies of the joint into firm contact
before final tightening. (ie, trying to draw the distorted plies together and shearing the pintail before the
plies are in contact rather than sequentially tightening, or using “fit up” bolts to draw them together)
On a T.C. bolt, the pintail will shear off when too great a torque is applied. Whereas a hex bolt may be
torqued beyond the plastic limit of the bolt without the knowledge of the installer when pulling the
distorted steel together.
III. CAUSE OF WRENCH PROBLEMS (See wrench booklet for instructions)
A) Pintail does not discharge from socket.
1) Check inner socket for abrasions or upsets. Remove and replace socket
2) Check inner socket for rust, sand, dirt, oil or other foreign material caused by poor handling or care in the field.
Clean inner socket and replace if necessary.
3) Check bolt pintail for foreign material as a result of poor handling in the field. Remove foreign material from pintail,
or discard the T.C. assemblies that are contaminated. DO NOT remove lubrication from “as received” products nor
re-lubricate.
4) Check ejector pin and spring for contamination. Disassemble and clean components. Replace spring if broken,
and pin if worn.
5) Check sockets for wear. Replace if necessary.
B) Socket does not engage properly with pintail or nut.
1) Check serrations of the socket for wear. Replace sockets if necessary.
2) Check socket size to be sure correct size for the fastener is being used. An oversized socket will wear faster and
create tightening problems.
TSW-5/01
5 www.stlouisscrewbolt.com
16. NEW Indexable Grip
INDEXABLE GRIP TYPE SHEAR WRENCH
M-221HRZ for 3/4” A325, A490 and 7/8” ASTM F1852/A325
Tension Control Bolts
Based on M221EZ wrenches, this
wrench has a special feature, that
the grip can be indexed at every
90 degrees and locked.
At 180 degrees, upper use is made
easier while operator stays above
beam.
At 90 degrees, tightening bolts on
the web is made easier.
SPECIFICATIONS
MODEL M-221HRZ
Voltage(S) 115V
Max. Current 13.5A
SHORT SOCKET WRENCH SHOWN Frequency 50/60Hz
Max. Power
Consumption 1300W
EXTERNAL DIMENSIONS Rated Max. Torque 544 ft. lbs.
Free Rotation 19 rpm
Weight - SS Model 13.3 lbs.
Weight - LS Model 16.0 lbs.
Indexable Angles: 0, 90, 180 & 270°
ACCESSORIES INCLUDED
1) 3/4” Inner & Outer Sockets (1 pc.) 4” Long
2) Screw Driver (-)
3) Connector (115V only)
4) Instruction Manual
5) Metal Case
OPTIONAL ACCESSORIES
7/8” Inner & Outer Sockets 4” Long
3/4” & 7/8” Short Inner & Outer Sockets
1-1/2” Long
6 www.stlouisscrewbolt.com
17. Simple Torqon Electric
TORQON ELECTRIC ADJUSTABLE TORGUE CONTROL WRENCH
SR31E, SR51E, SR71E for Hexagonal Bolts
ᕃ Torque control functions in both directions.
ᕄ Non-impact, very smooth and high precision
wrench of a new design. Simple to set targeted
torque and easy and comfortable to operate.
ᕅ No separate control unit, as the torque control
device is built into the main body. The wrench
design is compact, light in weight and well-
balanced.
ᕆ Socket with reaction bar turns independently to
a certain angle to make it easier to insert socket
into the nut.
ᕇ Main body will stand still during the movement
of the reaction bar until it makes contact with
opposing resistance i.e. another bolt or the
structure.
SPECIFICATIONS
Model SR31E SR51E SR71E
Size Range 5/8 Ø A325 & A490 5/8 Ø A325 & A490 3/4 Ø A325 & A490
3/4 Ø A325 7/8 Ø A325
Voltage(S) 115V 115V 115 V
Max. Current 13.5 A 13.5 A 13.5 A
Frequency 50/60 Hz 50/60 Hz 50/60 Hz
Power Consumption max 1100 W max 1100 W max 1100 W
150~300 N•m 300~500 N•m 350~700 N•m
Controllable Range
110~220 lbf•ft 220~370 lbf•ft 260~520 lbf•ft
Free Rotation 31 rpm 25 rpm 17 rpm
Weight (Mainbody) 9.5 lb 11.2 lb 12.1 lb
Model SR31E SR51E SR71E
L 9 – 10 1/2" 9 3/8 – 10 5/8" 9 3/4 – 11"
L1 4 – 5 1/4" 4 1/8 – 5 1/2" 4 5/8 – 5 7/8"
L2 1 5/8 – 2 7/8" 1 5/8 – 2 7/8" 1 5/8 – 2 7/8"
H 9 7/8" 10" 10 1/4"
ØD 2 1/4" 2 5/8" 3"
Ød 2 1/8 – 3 1/2" 2 1/8 – 3 1/2" 2 1/8 – 3 1/2"
ACCESSORIES
1) 1pc. Bar Socket 3) Metal Case
2) Screw Driver (-) 4) Instruction Manual
7 www.stlouisscrewbolt.com
18. Simple Torqon Electric
TORQON ELECTRIC ADJUSTABLE TORGUE CONTROL WRENCH
SR121E, SR211E, SR171E for Hexagonal Bolts
ᕃ Torque control functions in both directions.
ᕄ Non-impact, very smooth and high precision
wrench of a new design. Simple to set targeted
torque and easy and comfortable to operate.
ᕅ No separate control unit, as the torque control
device is built into the main body. The wrench
design is compact, light in weight and well-
balanced.
ᕆ Socket with reaction bar turns independently to
a certain angle to make it easier to insert socket
into the nut.
ᕇ Main body will stand still during the movement
of the reaction bar until it makes contact with
opposing resistance i.e. another bolt or the
structure.
SPECIFICATIONS
Model SR121E SR211E SR171E
Size Range 7/8 Ø A325 & A490 1 Ø A325 & A490 1 Ø A325 & A490
1 Ø A325 1 1/8 Ø A325 & A490 1 1/8 Ø A325 & A490
1 1/4 Ø A325
Voltage(S) 115V 115V 115V
Max. Current 15.0 A 12.0 A 12.5 A
Frequency 50/60 Hz 50/60 Hz 50/60 Hz
Power Consumption max 1400 W max 1100 W max 1200 W
600~1200 N•m 1000~2100 N•m 850~1700 N•m
Controllable Range
450~900 lbf•ft 750~1550 lbf•ft 630~1250 lbf•ft
Free Rotation 16 rpm 4 rpm 6 rpm
Weight (Mainbody) 19.4 lb 38.6 lb 17 lb
Model SR121E SR211E SR171E
L 13 5/8 – 15 1/8" 16 5/8 – 18" 11"
L1 6 7/16 – 7 7/8" 9 3/8 – 10 7/8" 6"
L2 2 – 3 7/16" 2 – 3 7/16" 2 1/2"
H 11 1/4" 11 5/8" 10 5/8"
ØD 3 3/8" 4 3/4" 4"
Ød 2 1/2 – 4 1/4" 2 1/2 – 4 1/4" 3 – 3 3/8"
ACCESSORIES
1) 1pc. Bar Socket 3) Metal Case
2) Screw Driver (-) 4) Instruction Manual
8 www.stlouisscrewbolt.com
19. Simple Torqon Electric
BAR SOCKET
SR31E, SR51E, SR71E
AF Size
Code No. (in) d A L Bolt Ø
MRUB 34 Z 1 1/16 2 3/8 3 1/4 2 5/8
MRUB 40 Z 1 1/4 2 3/8 3 1/4 2 3/4
MRUB 46 Z 1 7/16 2 1/2 3 1/4 2 7/8
MRUB 52 Z 1 5/8 2 3/4 3 1/2 2 3/8 1
SR121E
AF Size
Code No. (in) d A L Bolt Ø
HRUB 46 Z 1 7/16 2 3/4 3 1/4 2 1/8 7/8
HRUB 52 Z 1 5/8 3 3 1/2 2 1/2 1
HRUB 58 Z 1 13/16 3 1/8 4 2 5/8 1 1/8
SR211E
AF Size
Code No. (in) d A L Bolt Ø
SRUB 58 Z 1 13/16 3 3/8 4 5/8 2 1/2 1 1/8
SRUB 64 Z 2 3 1/2 5 2 1/2 1 1/4
SR171E
AF Size
Code No. (in) d A L Bolt Ø
VRU 41 T 1 5/8 3 4 15/16 2 1/2 1
VRU 46 T 1 13/16 3 3/8 4 15/16 2 1/2 1 1/8
Specifications are subject to change without notice
PLEASE NOTE:
WHEN USING THESE WRENCHES TO ESTABLISH THE CORRECT TORQUE SETTING THE METHODS RECOM-
MENDED BY THE FOLLOWING AGENCIES MUST BE APPLIED.
THE RESEARCH COUNCIL ON STRUCTURAL CONNECTIONS, AMERICAN INSTITUTE OF STEEL CONSTRUCTION
& INDUSTRIAL FASTENERS INSTITUTE ALL RECOMMEND THE FOLLOWING PROCEDURES.
1. A BOLT TENSION CALIBRATOR WHICH MEASURES DIRECT TENSION.
2. TURN-OF-NUT TIGHTENING.
FOR EXACT DETAILS REFER TO SPECIFICATION FOR STRUCTURAL JOINTS USING ASTM A325 OR A490 BOLTS.
STE-5/01
9 www.stlouisscrewbolt.com