How to Prevent Screws, Bolts & Nuts from Loosening
Threaded joints can lose clamp force or rotate loose because of vibration, transverse movement, settlement, temperature cycling, insufficient preload or repeated service. The correct fix depends on the failure mechanism rather than simply tightening the fastener harder.
Nyloc Nuts Guide: How Nylon Insert Lock Nuts Work
Nyloc nuts are prevailing-torque lock nuts that use a non-metallic insert near the top of the nut. As the bolt thread passes through the insert, the polymer deforms around the.