Ensure secure fastening with our External Tooth Lock Washer. Designed for precision, this washer features an outside diameter of 5.5 mm and an inside diameter of 2.7 mm, making it ideal for use with M2.5 screws. Crafted from durable steel with a zinc finish coating, it guarantees lasting performance even in demanding environments. With a thickness of 0.4 mm and compliance with RoHS standards, you can trust in its quality and environmental responsibility. Upgrade your assembly process with this essential component, meeting DIN 6797A specifications for assured reliability.