Star Washers (Internal / External Tooth Lock Washers) are designed to prevent loosening of fasteners and improve electrical conductivity in connections. Installation involves placing the washer between the fastener head or nut and the substrate. The teeth of the washer bite into the surface and the fastener, creating a secure grip that resists rotation and vibration.

Star Washers are commonly used in electrical panels, machinery, automotive assemblies, and electronic equipment. Available in materials such as stainless steel, mild steel, and brass, they provide reliable locking action, corrosion resistance, and durable performance in both indoor and outdoor applications.