Also referred to as a prevailing torque nut, self-locking nut, locking nut, a locknut is a type of nut that prevents loosening under torque or vibrations. Most locknuts are made of stainless steel for durability, among other finishes. It’s through the distortion of their uppermost threads that their locking action is made. The stiff nut should resist loosening that is brought about by vibration and shock. Elastic stop nuts
also have a special feature that makes frictional interference. Locknuts are reusable as many times as possible while the prevailing torque reduces every time the nut is in use.
Shop through a large selection of locknuts at MRO Supply. We stock a variety of hex locknuts and other types of locknuts in a range of styles and sizes.