Re:Self-tightening nut that provides tight fastening with a ...
by eksith on Monday November 10, 2014 @12:03PM
(#8584674)
It may be better than adhesive when repeated removal is necessary. Thread locking fluid is a pain in smaller applications when the material flakes off as you untighten, which you have to clean up afterwards. In a clean-room or other delicate environment, having loose particulates is a big problem.
Re:Self-tightening nut that provides tight fastening with a ...
by vonmoltke on Monday November 10, 2014 @12:10PM
(#8584726)
In a vibration-sensitive application, it may be needed in addition to a torque spec. The radar hardware I used to support had either Loctite or locking helicoils on nearly every mechanical attachment point. Our hardware would not have passed our vibe tests without it.
A bolt with nut is supposed to work like a kind of high-tension spring pulling the pieces being fastened together. For large safety critical projects there is a technology to directly measure the tension of the bolt so that you know you have tightened the nut enough: http://www.checkline.com/product/TI-MINIMAX
This is better than a torque spec (where you don't know the friction exactly, so the bolt tension is an estimate).