Enhance the security of your fastening applications with this External Tooth Lock Washer. Crafted from durable 410 Stainless Steel, it offers reliable performance and corrosion resistance. Meeting ASME B18.21.1 specifications, this washer features an outside diameter of .501 inches and a thickness of .025 inches, making it suitable for various industrial uses. The external teeth provide a firm grip, preventing loosening due to vibrations or movement. With an inside diameter of .262 inches and a hole size of 1/4 inch, it is designed to perfectly complement your fasteners. Additionally, this washer is RoHS compliant, ensuring environmental responsibility in its production. Upgrade your assembly process with this essential component for secure and lasting connections.