Q. The distance a screw thread advances axially for one complete revolution is called

A
Pitch
B
Lead
C
Root
D
Module
Solution:

The distance travelled by a nut on a bolt for one complete rotation of the bolt is called Lead of a screw.

Pitch of the screw is the distance between two adjacent points on a thread.

For a single start thread, lead and pitch are the same.

For a double start thread, Lead is twice of its pitch value.

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