Enhance the security of your fastening applications with this Internal Tooth Lockwasher. Made of durable 410 Stainless Steel, it ensures reliable performance in various environments. With an outside diameter of .184 inches and a thickness of .011 inches, it offers a snug fit for your #2 hole size. The internal teeth provide a firm grip, preventing loosening due to vibrations or external forces. RoHS compliant, this lockwasher is not only effective but also environmentally friendly. Upgrade your assembly process with this essential component.