Ensure secure fastening with this Internal Tooth Lockwasher. Made of durable steel with a zinc finish coating, it provides reliable corrosion resistance. With an outside diameter of .373 inches and a thickness of .021 inches, it is designed for a hole size #8. The internal tooth design offers enhanced grip and prevents loosening, making it ideal for various industrial applications. Its RoHS compliance also ensures environmental responsibility. Upgrade your fastening system with this essential component.