Ext-Tooth Washer

Ext-Tooth Washers, also known as External Tooth Lock Washers, feature serrated teeth extending outward from their outer edge. These teeth bite into the mating surface and the underside of the fastener, creating strong locking resistance and preventing loosening caused by vibration or load shifts. Their wide, aggressive grip makes them ideal for electrical connections, metal assemblies, and applications needing enhanced fastening security.