Tooth Lock Washers

Tooth lock washers are specialized fasteners designed to prevent nuts and bolts from loosening due to vibration and movement. These washers have multiple “teeth” or serrations along the inner or outer edge, which dig into the mating surfaces when tightened. This unique design provides a secure locking mechanism by increasing friction and resisting rotational movement, helping maintain the integrity of the fastener

There are two primary types of tooth lock washers: internal tooth and external tooth. Internal tooth lock washers have teeth on the inner circumference, ideal for smaller screws or when space is limited, as they provide excellent grip while leaving the outer surface clear. External tooth lock washers, with teeth on the outer circumference, offer a stronger hold and are often used in applications with larger fasteners or where greater torque resistance is needed.

Tooth lock washers are widely used in industries like automotive, aerospace, and machinery, where vibration resistance is critical. They’re commonly found in engine mounts, electrical connectors, and machinery assemblies, where their anti-loosening properties contribute to operational safety and stability. Made from materials like stainless steel or zinc-plated steel for enhanced corrosion resistance, tooth lock washers are a cost-effective solution for maintaining secure connections in challenging environments.