Tab Washers

Tab washers, also known as lock washers or tab lock washers, are specialized washers designed to prevent fasteners from loosening in applications that experience heavy vibrations or movement. These washers feature one or more tabs, which can be bent to engage with the surface of the assembly or the nut, effectively locking it in place. By securing both the washer and the fastener, tab washers provide a reliable anti-rotation mechanism, reducing the risk of loosening over time.

There are several types of tab washers, including single-tab, multi- tab, and double-tab washers, each suited for different applications. Single-tab washers have one tab that can be bent up against a flat of a bolt or nut to lock it, while double-tab washers have two tabs for added security. Some designs also include a central tab that fits into a slot or keyway on the shaft, providing even more stability.

Commonly made from materials like stainless steel, carbon steel, or brass, tab washers are known for their durability and resistance to corrosion. They are widely used in industries such as automotive, aerospace, and heavy machinery, where secure fastening is crucial. Tab washers are often found in gear assemblies, bearing mounts, and

shaft connections, where their locking action helps enhance operational safety, reliability, and maintenance-free performance.