Enhance the security of your fastening applications with this External Tooth Lock Washer. Crafted from durable 316 Stainless Steel, it ensures reliable performance in demanding environments. With an outside diameter of 0.373 inches and a thickness of 0.021 inches, it provides a snug fit for #8 size holes, with an inside diameter of 0.172 inches. Designed to meet ASME B18.21.1 specifications, this washer guarantees quality and consistency. Its external tooth design offers superior grip, preventing loosening and maintaining the integrity of your assemblies. Trust in this essential component for effective fastening solutions.