Internal Tab Washers

Type of lock washers with internal teeth designed to prevent a nut or bolt head from loosening with strut action mechanism. These internal tooth lock washers are excellent in absorbing shock and vibrations with aid of the teeth. BoltPort offers these tooth lock washers in metric and imperial sizes.

Zinc plated steel, stainless steel, phosphor bronze, copper, 410 stainless steel 304 and 316 stainless steel, aluminum, etc. are typical choice of material for manufacturing internal tooth lock washers. We offer these lock washers with zinc plating, black oxide, tin dipped, yellow passivation, cadmium coating, etc.