Ensure your fasteners stay securely in place with this External Tooth Lock Washer. Designed to DIN 6797A specifications, this washer features a durable stainless steel construction, making it resistant to corrosion and ideal for use in various applications. With an outside diameter of 5.5 mm and a thickness of .4 mm, it provides reliable locking power while maintaining a low profile. The precise inside diameter of 2.7 mm and hole size of M2.5 ensure a perfect fit for your fastening needs. Rest assured of its quality and compliance with RoHS standards.