Enhance the security of your fastening applications with our External Tooth Lock Washer. Designed to provide a reliable grip, this washer features a durable Steel construction with a Black Oxide finish for corrosion resistance. Measuring .467 inches in outside diameter and .024 inches in thickness, it is ASME B18.21.1 compliant. The precise .226-inch inside diameter and #12 hole size ensure a perfect fit for your bolts and screws. Rest assured of its environmental friendliness with RoHS compliance. Upgrade your assembly process with this essential hardware component.