Enhance the security of your fastening applications with our External Tooth Lock Washer. Crafted from durable bronze, this washer features a precision outside diameter of .312 inches and a thickness of .02 inches, meeting ASME B18.21.1 specifications. Its unique design includes external teeth for superior grip and stability, ensuring that your #6 hole size fasteners remain securely in place. With an inside diameter of .146 inches, this washer is the perfect choice for your industrial or DIY projects. Rest assured of its quality and reliability, as it is designed for long-lasting performance. Upgrade your fastening systems today with this essential component.