In Reply to: Torque Guides posted by Kimberly on March 15, 2021 at 19:20:53:
To add to the confusion, torque values change depending on the friction applied to the fastener. The friction is in two places, under the head/nut where it contacts the part, and the engagement surfaces of the threads. I am not including such variables as misalignment and side loads on the fastener, which are pretty hard to calculate.
Dry threads take more torque than oiled threads. A "slick" lubricant can make it easy to over-torque and stretch the fastener too much. I do not recall any advice on the effect of thread locker on torque values, but it must be acting as a lubricant.
I sometimes see mention of correction for "oiled threads" in torque charts. Often, there is no mention of such variables.