Midwest Fastener #6 Internal Tooth Lock Washer

The Midwest Fastener #6 Internal Tooth Lock Washer is engineered to provide superior holding power and vibration resistance in a wide variety of fastening applications. Featuring internal serrated teeth, this lock washer bites firmly into mating surfaces to ensure a secure, tight hold that prevents fasteners from backing off under operational tension or vibration. Constructed from durable steel with a corrosion-resistant zinc finish, this washer is ideal for automotive, industrial, and general hardware projects where dependable performance and long-lasting durability are required.