Tab Washer

The tab washer belongs to lock-type fasteners. Its design and dimensions comply with GOST 13463-77. The internal thread diameter ranges from 3-48 mm. The tab washer keeps the system’s components in tight contact with each other under vibration or variable external loads.

Material of manufacture is stainless steel with high strength properties, or steel with increased carbon content and a zinc coating applied by electroplating. Both variants combine strength and corrosion resistance, allowing the washers to be used in mechanical engineering, including demanding operating conditions.

A distinctive design feature is the rectangular tab, which is bent over the edge of the base. This prevents the washer from rotating under dynamic or vibrational loads. Tab lock washers are used in threaded fasteners to secure high-responsibility assemblies.