Enhance the security of your fasteners with this Internal Tooth Lockwasher. Crafted from durable Phosphor Bronze, it offers reliable performance with a thickness of .024 inches. Designed for a #12 hole size, it features an inside diameter of .226 inches and an outside diameter of .467 inches, making it suitable for various applications. Rest assured of its compliance with RoHS regulations, ensuring environmental responsibility in your projects. Upgrade your hardware with this essential component for added stability and peace of mind.