Tooth Lock

A tooth lock washer is a washer with twisted prongs or teeth which can extend out from the outer edge of the washer, extend inward from the inside edge, or a combination of both. The locking teeth provide an efficient solution for securing applications prone to vibrations. Offered in stainless steel, steel zinc, and zinc yellow. Available and ready-to-ship in a variety of sizes and finishes. Browse our selection of tooth lock washers for your building projects and industrial applications.

Here at BW Industrial Sales, your satisfaction is our number one priority! If you have any questions about tooth lock washers or any other manufacturing parts and tooling, please contact our experienced and qualified BW Industrial Sales staff; or call us at 626-358-1836 for an immediate response.


Countersunk Tooth Lock Washer:  An external tooth lock washer with a conical shaped bearing surface. Designed for use with flat or oval head screws with countersunk angles.

External Tooth Lock Washer:  A tooth lock washer with twisted prongs or teeth on the outer edge of the washer. The most preferable of all tooth lock washers and the teeth offer the largest radius, providing greater torsional resistance.

Combination Tooth Lock Washer:  A tooth lock washer with twisted prongs or teeth protruding from both the inside and outer edges of the washer. The two sets of teeth provide additional holding power and offer vibration resistance.

Internal Tooth Lock Washer:  A tooth lock washer with twisted prongs or teeth which extend inward from the inside edge of the washer. Preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw.