Secure your fasteners with ease using this Internal Tooth Lockwasher. Made of durable steel with a zinc coating for added protection, this lockwasher ensures a reliable grip. With an outside diameter of 4.5 mm and a thickness of 0.3 mm, it is designed for precise applications. The internal diameter of 2.2 mm and hole size of M2 make it compatible with a variety of screws and bolts. Rest assured of its quality as it complies with RoHS regulations. Trust this lockwasher for all your fastening needs.