Enhance the security of your fastening applications with this External Tooth Lock Washer. Designed to prevent loosening and ensure a tight grip, this washer is a reliable addition to any project. With a durable steel construction and a yellow zinc finish coating, it offers both strength and corrosion resistance. Meeting ASME B18.21.1 specifications, it guarantees quality and performance. The .501-inch outside diameter and .025-inch thickness make it suitable for various bolt sizes, while the .262-inch inside diameter and 1/4-inch hole size ensure a snug fit. Rest assured of its compliance with RoHS regulations. Trust in this washer for efficient and effective fastening solutions.