____ threads have a helix that causes assembled fasteners to get tight when rotated clockwise.
A) Right-hand
B) Left-head
C) Lead
D) Crested

Question

Quizplus · Accepted Answer

Right-hand threads have a helix that causes them to get tighter when rotated clockwise. This is due to the angle of the helix, which causes the fastener to move down and inward as it is turned in a clockwise direction. Left-hand threads, on the other hand, get tighter when rotated counterclockwise. Lead and crested are not relevant descriptors for thread direction.

____ Threads Have a Helix That Causes Assembled Fasteners to Get