Fastener SuperStore will close at 5pm CT on Friday, May 24th. Orders placed after that time will ship on Tuesday, May 28th. Have a safe and happy Memorial Day!

Internal Tooth Lock Washers

Internal Tooth Lockwashers

Internal Tooth Lockwashers are available in steel with a zinc, black oxide, black zinc or yellow zinc finish; and in 18-8 or 410 stainless steel. Twisted internal prongs allow these lockwashers to dig and lock into the adjacent material, while providing a finished look on the exposed outer diameter.