Enhance the security of your fastening applications with our External Tooth Lock Washer. This essential component, made of durable Stainless Steel, ensures a reliable grip and prevents loosening of screws and bolts. With an outside diameter of .6 inches and a thickness of .031 inches, it offers optimal performance in various industrial settings. Compliant with ASME B18.21.1 standards and RoHS regulations, this washer guarantees both quality and environmental responsibility. Its precise design, featuring an inside diameter of .326 inches and a hole size of 5/16, enables seamless installation and efficient operation. Trust in the effectiveness of this External Tooth Lock Washer for maintaining the integrity of your assemblies.