Why use torque and angle?
We didn’t invent this. It has been used by automobile and diesel manufacturers and in the aerospace industry for many years because it is much more accurate than using torque to tighten bolts. Torque and Angle uses the pitch of the threads as a good, repeatable reference for properly tightening the bolts. For example, if the bolt has a 7/16″ 20 threads per inch pitch, then one full (360 degree) turn of the bolt will move the bolt exactly .050″ (fifty thousandths of an inch), or 36 degrees of turn will move the bolt exactly .005″ (5 thousandths of an inch). We have a specification for Torque and Angle for all of our bolts, no matter their size (5/16″, 3/8″, 7/16″ etc.) and our specs are all derived from the pitch of the specific thread on each size of bolt.
