Enhance the security of your fastening applications with this External Tooth Lock Washer. Crafted from high-quality 316 Stainless Steel, it offers exceptional durability and corrosion resistance. Compliant with ASME B18.21.1 specifications, this washer features precise dimensions, including an outside diameter of .501 inches and a thickness of .025 inches. The external tooth design provides a reliable grip, ensuring that your connections stay securely in place. With an inside diameter of .262 inches and a hole size of 1/4 inch, it is suitable for a wide range of industrial and commercial uses. Rest assured of its environmental responsibility, as it is RoHS compliant. Upgrade your fastening system with this essential component for optimal performance and peace of mind.