On Jun 29, 10:20*am, "Stu Fields" wrote:

Calibration can be like measuring with a micrometer and cutting with an axe.
Unbrako says that torque wrench accuracy for generating the clamping force
is +/- 25%.
Stu

True, clamping force and "torque" are not always a direct
relationship. Thus the use of Torque-n-Turn specs (and other methods
of overcoming thread friction). I've never seen any specs for AN
hardware other than simple torque values. Do Torque-n-Turn specs
exist for AN hardware? Yes, I know that AN hardware isn't "torque to
yield" but the method is still of value for reusable fasteners.
=================
Leon McAtee