Ensure secure fastening with this Internal Tooth Lockwasher. Made of durable steel with a Cadmium Yellow finish coating, it provides reliable corrosion resistance. The precise .02-inch thickness and .312-inch outside diameter accommodate #6 hole sizes, guaranteeing a snug fit. With an inside diameter of .146 inches, it is designed for optimal performance. Rest easy knowing this lockwasher is compliant with RoHS regulations, making it a safe and environmentally conscious choice for your assembly needs.