Self Locking Wedge Lock Washer

External Serrated Lock Washers 

Wedge Lock Washers are commonly used in automobiles to prevent loosening of nuts and bolts due to vibrations and other factors. These washers have a unique design with wedges that grip the surface of the bolt and the mating surface, providing a secure locking mechanism. They are typically made of hardened steel or stainless steel to provide durability and resistance to corrosion. Wedge lock washers are commonly used in critical applications such as suspension systems, engine components, and other high-stress areas in automobiles.