Enhance the security and stability of your fastening applications with this Internal Tooth Lockwasher. Crafted from durable steel with a yellow zinc finish coating, it guarantees long-lasting performance even in demanding environments. With an outside diameter of .373 inches and a thickness of .021 inches, it provides a snug fit, while its precise inside diameter of .172 inches accommodates a #8 hole size. Compliant with RoHS standards, this lockwasher offers both reliability and environmental responsibility. Upgrade your assembly processes with this essential component.