15) The depth of B.A. screw thread is :
Related Screw Threads MCQ - Turner (Set-1) with Answers
Imaginary diameter in between the major and minor diameters of the thread
Pitch diameter of a screw thread is the imaginary diameter in between the major and minor diameter of the thread.
B.S.F screw threads are generally used for Electrical goods.
Square threads are used for transmitting motion or power. Eg. screw jack, vice handles, cross-slide and compound slide, activating screwed shafts.
Screw threads are produced without metal removing by a process called thread rolling.