Screw pitch gauge

Features of a screw pitch gauge

. the purpose of a screw pitch gauge

. the features of a screw pitch gauge

Purpose

A screw pitch gauge is used to determine the pitch of a thread.

It is also used to compare the profile of threads.

Constructional features

Pitch gauges are available with a number of blades assembled as a set. Each blade is meant for checking a particular standard thread pitch. The blades are made of thin spring steel sheeets, and are hardened.

Some screw pitch gauge sets will have blades provided for checking British Standard threads(BSW, BSF etc). At one end and the metric standard at the other end.

The thread profile on each blade is cut for about 25mm to 30mm. The pitch of the blade is stamped on each blade. The standard and  range of the pitches are marked on the case

For obtaining accurate results while using the screw pitch gauge, the full length of the blades should be placed on the threads.