RS PRO Stainless Steel Plain Internal Tooth Shakeproof Washer, M20, DIN 6797J

The washers lock into place around a bolthead or nut with their internal teeth. They provide a tight grip that prevents the fasteners from coming loose, so they hold tight even during heavy use. This reduces equipment maintenance as there's no need to worry about tightening or replacing components.

By keeping bolts and fixings secured, these shakeproof washers increase workplace safety by helping to prevent accidents and damage. These washers are commonly used in situations where vibrations and regular forceful movements are common, such as the transport industry and industrial machinery.