I am studing in Diploma Mechanical Engineering. I prepar this Presentation of Nuts and Bolts for my Maufacturing System Subject. So I share my presentation to all of you.

1. EXPERIMENT-01
How It’s Made
Nuts and Bolts
Prepare By
NAME: Vegad Yash Kumar Parsotambhai
ENROLLMENT NO:186040319122
DIVISION: M6B

2. Introduction
 A nut is a type of hardware fasteners with a threaded hole. Nuts are almost always used
opposite a mating bolt to fasten a stack of parts together.
 The two partners are together by a combination of their thread’s friction, a slight stretch of
the bolt, and compression of the parts.
 A washer is a thin plate typically disk-shaped with a hole that is normally used to distribute
the load of a threaded fastener.
 They can be made from metals, plastics or composites.

3. How its made
 Carbon steel and Alloy steel material
used for Nut & Bolt manufacturing.
 Nut mfg. by Blanking and Threading.
Bolt by forging and threading.

4. Processes during Manufacturing
Manufacturing processes mainly include:-
 Anealing
 Cold Forging(nuts rivets sleeves)
 Inline rolling
 Finishing/Coating
 CNC Turning
 Threading

5. Types of materials are used
 Bolts made of carbon steel and alloy steel: 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9 Nuts made
of carbon steel and alloy steel: 4, 5, 6, 8, 10, 12
 Bolts made of stainless steel: steel grade A1, A2, A3, A4, A5 Material Class 50, 70,
80 (tensile strength of 500, 700 and 800 MPa) Nuts made of stainless steel: 50, 70,
80
 Washers (if appropriate) according to hardness class HV 100 or HV 200

7. Types of bolts and their Application

9. Address or references
 https://youtu.be/dUtIo5BQHKk
 https://youtu.be/3Pc5zms3xJE

10. Conclusion
 You can find bolts and nuts in several shapes, but no shape is more common than
hexagonal. The use of a hexagonal shape makes fasteners easier to turn by
reducing the required turning distance. To tighten a bolt or nut, you must turn it.
Thanks to their side sides, Hexagonal bolts and nuts require a turning radius of just
degrees to reach the next flat parallel.