Ensure secure fastening with this Internal Tooth Lockwasher. Crafted from durable steel with a zinc finish coating, this washer offers reliable protection against loosening and slipping. Featuring an outside diameter of .312 inches and a thickness of .02 inches, it is designed to fit perfectly with #6 hole sizes. With an inside diameter of .146 inches, it provides a snug fit for optimal performance. Rest assured of its compliance with RoHS standards, making it a safe and environmentally friendly choice for your assembly needs. Trust in the quality and functionality of this essential hardware component.