Enhance the security of your fasteners with this External Tooth Lock Washer. Crafted from durable steel and coated in green zinc for added protection, it offers reliable performance in various applications. Designed to ASME B18.21.1 specifications, this washer features an outside diameter of 0.501 inches and a thickness of 0.025 inches. With an inside diameter of 0.262 inches and a hole size of 1/4 inch, it ensures a snug fit for your bolts or screws. Rest assured of its quality, as it is compliant with RoHS regulations. Upgrade your assembly process with this essential component, known for its effectiveness in preventing loosening and ensuring the stability of your connections.