Spring Washer 17mm O/D with 10mm hole

Designed to prevent nuts from loosening under vibration or movement. 

With a 17 mm outer diameter and 10 mm centre hole, it’s ideal for use with M10 threaded rods and fixings. The split, curved profile applies constant tension when tightened, keeping the nut securely in place and maintaining a reliable connection in lighting installations, brackets, and general hardware applications.