Enhance the security of your fastening applications with our External Tooth Lock Washer. Designed to prevent loosening and ensure a tight grip, this washer is a crucial component in any assembly. Made of durable steel with a zinc coating for added protection against corrosion, it guarantees long-lasting performance. Measuring 1.6 inches in outside diameter and .063 inches in thickness, it is compatible with various standard fasteners. The precise design, meeting ASME B18.21.1 specifications, offers reliable locking functionality. With an inside diameter of 1.04 inches and a hole size of 1 inch, it accommodates a wide range of bolts and screws. Trust in the quality and effectiveness of this washer for your industrial or DIY projects.