Lock washers, an essential component in fastening systems, provide enhanced security and stability to critical connections. These specialized washers, also known as locking washers, are designed to prevent loosening or unscrewing of fasteners due to vibration, thermal expansion, or other external forces.

The primary function of lock washers is to create a mechanical resistance that adds friction to the fastening assembly. This resistance helps maintain the tension between the fastener and the substrate, reducing the risk of unintentional loosening. Lock washers come in various designs, including split washers, toothed washers, and serrated washers, each with its unique mechanism to resist rotation and provide additional locking capability.