a supplementary nut that is screwed down on a primary nut to prevent it from loosening; a check nut.
A nut used to lock an adjustment nut, or other threaded component, in place. For example, a locknut is employed to keep the adjusting nut on the rocker arm in position.
A nut that is tightened against the primary nut, to keep it from loosening, when the primary nut is tightened to the needed torque. A locknut, also called a jam nut, may be the same as the primary nut or may be made of stamped sheet metal.
a nut that avoids the backing off and loosening of all threaded components
Threaded nut used to tighten parts inside a light fixture
A nut that uses a nylon insert in order to better grip the threads of a bolt or shaft and thereby preventing it from coming loose. It is used extensively for axles and other areas where nuts must stay secure, but it may need to be removed frequently for maintenance or repair.
Nut for securing the shanks of a 2H faucet to a counter top or tub wall. The nut may include a flange for spanning large holes or may be used with a crowfoot washer.
A locknut (lock nut or locking nut) is a nut that is used to stop some other nut or similar component from working loose. Locknuts are generally used when some part of a machine spins. Bicycles, wheels on axles, pipes, sanders, and grinders all use locknuts of some kind.
