The ____ is the valley between threads and creates the points from which the minor diameter is measured.
A) root
B) lead
C) pitch
D) crest

Question

Quizplus · Accepted Answer

The root is the bottom of the valley between threads and is used as the reference point for measuring the minor diameter of a screw or bolt. The lead refers to the distance between corresponding points on adjacent threads, while the pitch is the distance between corresponding points on the same thread. The crest is the top of the thread.

The ____ Is the Valley Between Threads and Creates the Points