Introducing our Stainless Steel External Tooth Lock Washer, a reliable and durable fastening solution for your projects. Designed to ASME B18.21.1 specifications, this washer ensures secure attachment with its .036-inch thickness and .682-inch outside diameter. The .391-inch inside diameter and 3/8-inch hole size accommodate various bolts and screws, making it versatile for different applications. Rest assured, this washer is compliant with RoHS regulations, meeting environmental standards. Trust in its quality and performance for all your fastening needs.