Chapter Screw threads and conventional representations
Screw threads
The most common application of the helix is in a screw thread which follows the path of the helix. Screw threads may be either left or right hand and these are shown pictorially in Fig. 15.1. Notice the slope of the thread and the position of the index finger on each hand. The left-hand thread is used for special applications and the right-hand thread is the one normally used on nuts and bolts. The thread illustrated has a vee-section.
Fig. 15.1
The following terms are associated with screw threads:
- The thread pitch is the distance between corresponding points on adjacent ...
Get Manual of Engineering Drawing, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
