An angular tightening gauge (sometimes called a torque angle gauge) is used to make sure there is equal tightness of fasteners on a component. It is calibrated in degrees.

A torque angle gauge is used in conjunction with a torque wrench.

By using an angular tightening gauge, instead of just a torque wrench on its own removes the error that can be produced by friction in the threads.

Normaly the measurements are done in either Newton Meters or foot pounds. Each fastener being inserted should also come with specifications for the torque angle. The torque angle is measured in degrees using the angular tightening gauge - and this specification will also need to be known. Normally the correct torque is reached with the torque wrench and then the proper torque angle is corrected.

To use an angular tightening gauge follow these steps.

1 - Find the specifications for the fastener or bolt which is to be inserted.

2 - Put the angular tightening gauge over the bolt.

3 - Tighten the gauge and the bolt using a torque wrench while monitoring the torque level on the angular tightening gauge. Stop tightening when the specified torque degree is reached.

4 - Remove the torque angle gauge from the bolt head.