The LOCK WASHER EXTERNAL ZINC 5/16" EXTERNAL TOOTHED (SKU: ELW56) is engineered for superior locking performance, featuring twisted prongs that extend from the outer edge for enhanced grip. Made from high-quality spring steel, this washer provides exceptional durability and resistance to loosening under vibrations. Ideal for securing bolts and fasteners in automotive and industrial settings, it ensures reliable connections in critical applications. The zinc coating adds corrosion resistance, making it suitable for both indoor and outdoor use.