Ensure secure fastening with this Internal Tooth Lockwasher. Made of durable 410 Stainless Steel with a Passivated finish coating, it offers reliable corrosion resistance. The washer features an outside diameter of .305 inches and a thickness of .017 inches, making it suitable for #10 hole sizes. With an inside diameter of .199 inches, it provides a snug fit for optimal performance. Compliant with RoHS standards, this lockwasher is both functional and environmentally friendly. Perfect for various applications, it guarantees tight and long-lasting connections.