WELLCOME
PRESENTATION BY :
ADNAN ASLAM ADNAN
ROLL NO: 9801
CLASS: T.M.R - B
Thread Terminology
☺WHAT IS THREAD ? ? ?
 The continuous helical groove on a screw or
on the inner surface of a nut.
Uses of threads:
AS TEMPORARY
FASENTER
FOR POWER
TRANSMISSIOM
 THREAD TERMS:
☺MAJOR DIAMETER
☺PITCH DIAMETER
☺MINOR DIAMETER
☺ANGLE OF THREAD
☺DEPTH OF THREAD
☺ROOT ☺ LEAD
☺CREST ☺ FL...
 It is the largest diameter of an internal or
external screw thread. It is also known as
outside or nominal diameter.
 It is the smallest diameter of an internal or
external screw thread. It is also known as core or
root diameter.
 Angle of adjacent flanks measured at the
cross-section of the screw thread- included
the axis of the screw thread.
 The height between the root and the crest
vertically to the thread axis.
 The bottom surface joining the two adjacent
flanks.
 The top surface joining the two flanks of a
thread is called crest.
 It is the distance from a point on one thread
to the corresponding point on the next point.
This distance to be measured...
 Thread face(excluding the root and crest).
9. LEAD
 The distance covered by the nut in a
single revolution on bolt parallel to the
axis is called “LEAD”
COMPOSER:
SUBJECT:
CREDITS:
• ADNAN ASLAM
ROLL NO:(9801)
• MACHINE
DESIGN
• MT - 343
• T.M.R ; B
• SESSION:(2009-
12)
LINE FOR SESSIONALS
Thread terminology
Thread terminology
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Thread terminology

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All the terms that use in thread making and designing....
Mian Adnan Aslam From Sheikhupura , Pakistan...

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Thread terminology

  1. 1. WELLCOME
  2. 2. PRESENTATION BY : ADNAN ASLAM ADNAN ROLL NO: 9801 CLASS: T.M.R - B Thread Terminology
  3. 3. ☺WHAT IS THREAD ? ? ?  The continuous helical groove on a screw or on the inner surface of a nut.
  4. 4. Uses of threads: AS TEMPORARY FASENTER FOR POWER TRANSMISSIOM
  5. 5.  THREAD TERMS: ☺MAJOR DIAMETER ☺PITCH DIAMETER ☺MINOR DIAMETER ☺ANGLE OF THREAD ☺DEPTH OF THREAD ☺ROOT ☺ LEAD ☺CREST ☺ FLANK ☺PITCH
  6. 6.  It is the largest diameter of an internal or external screw thread. It is also known as outside or nominal diameter.
  7. 7.  It is the smallest diameter of an internal or external screw thread. It is also known as core or root diameter.
  8. 8.  Angle of adjacent flanks measured at the cross-section of the screw thread- included the axis of the screw thread.
  9. 9.  The height between the root and the crest vertically to the thread axis.
  10. 10.  The bottom surface joining the two adjacent flanks.
  11. 11.  The top surface joining the two flanks of a thread is called crest.
  12. 12.  It is the distance from a point on one thread to the corresponding point on the next point. This distance to be measured parallel to the axis of the thread.
  13. 13.  Thread face(excluding the root and crest).
  14. 14. 9. LEAD  The distance covered by the nut in a single revolution on bolt parallel to the axis is called “LEAD”
  15. 15. COMPOSER: SUBJECT: CREDITS: • ADNAN ASLAM ROLL NO:(9801) • MACHINE DESIGN • MT - 343 • T.M.R ; B • SESSION:(2009- 12)
  16. 16. LINE FOR SESSIONALS

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