High-Quality External Tooth Lock Washers

What is an External Tooth Lock Washer?

An external tooth lock washer is a highly aggressive, tension-inducing fastener engineered with twisted locking teeth positioned along the outer diameter of the ring. Designed specifically to provide maximum resistance to loosening, these washers are perfectly suited for joints utilizing large head screws. Manufactured from premium, industrial-grade materials, they provide an exceptionally secure, durable seal for extreme load-bearing applications where snagging or friction with nearby components is not a concern and a smooth exterior appearance is not critical.

Mechanical Advantages and Industrial Applications

Because their locking mechanism extends beyond the outer edge of the fastener head, external tooth lock washers offer several critical structural advantages for heavy-duty assemblies:

• Aggressive Locking Grip: The twisted external teeth physically dig deeply into both the underside of the large fastener head and the mating surface. This creates a powerful, high-friction lock that completely prevents rotational slippage.
• Maximum Vibration Absorption: They are the absolute industry standard for high-shock, high-wear, and severe vibration applications, drastically reducing maintenance needs and improving the operational performance of your equipment.
• Heavy-Duty Applications: Because of their aggressive grip, they are frequently utilized in massive industrial motors, engines, commercial turbines, heavy aggregators, and extreme mechanical vibrators.

Custom Manufacturing and Expert Finishing

Backed by over 25 years of experience supplying washer solutions for complex industrial applications, U-Bolt-It maintains a massive, full-line inventory of external tooth lock washers readily available in highly durable zinc and corrosion-resistant stainless steel. We expertly accommodate any volume, scaling effortlessly from rapid short runs to full production lines for quick delivery. Furthermore, our facility offers comprehensive custom finishing services—including precision cutting, chamfering, and specialized coatings—to ensure your washers perfectly meet your exact environmental and operational requirements.

Request a Quote Today

Have a question about our manufactured external tooth lock washers or need help selecting the perfect custom coating for your high-shock turbine assembly? Contact our team by using our secure online form to submit your project details. You can also give us a call today to speak directly with our experienced fastener specialists. Their application expertise will ensure that the washers you select will perform at or above your requirements. We look forward to speaking with you!