Enhance the security of your fastening applications with our External Tooth Lock Washer. Designed for #6 hole sizes, this stainless steel washer features a durable construction with a thickness of .02 inches. Its ASME B18.21.1 specification ensures quality performance, while its precise measurements of .312 inches outside diameter and .146 inches inside diameter guarantee a perfect fit. Rest assured, this washer is compliant with RoHS regulations, making it an environmentally friendly choice. Upgrade your assembly process with this essential component for optimal fastener retention.