Midwest Fastener 1/2 in. External Tooth Lock Washer

The Midwest Fastener 1/2 in. External Tooth Lock Washer is engineered to provide superior holding power in demanding fastening applications. Designed with external serrated teeth, this lock washer bites into the mating surfaces of bolt heads and nuts to create positive tension and resist loosening caused by heavy vibration or shock. Manufactured from high-quality steel with a zinc-plated finish, this washer offers dependable strength and enhanced corrosion resistance for various automotive, industrial, and household projects. Its external tooth design ensures maximum contact and security for long-lasting assemblies.