Enhance the security and stability of your fastening applications with this Internal Tooth Lockwasher. Crafted from durable stainless steel, it offers reliable performance in various environments. With an outside diameter of 4.5 mm and a thickness of 0.3 mm, it is designed for precise fitting. The internal diameter of 2.2 mm and hole size of M2 ensure compatibility with standard screws. Compliant with RoHS regulations, it is not only efficient but also environmentally friendly. Upgrade your assembly process with this essential component.