Ensure reliable fastening with this External Tooth Lock Washer. Made of durable steel with a zinc finish coating, it provides exceptional corrosion resistance. Designed to ASME B18.21.1 specifications, this washer features an outside diameter of .373 inches and a thickness of .021 inches, perfect for #8 hole sizes. Its external tooth design offers enhanced grip, while the inside diameter of .172 inches ensures a secure fit. With RoHS compliance, you can trust in its quality and environmental responsibility. Ideal for a wide range of applications, this washer guarantees optimal performance in any project.