This RS PRO shakeproof washer is designed to hold fastenings in place on machines that experience frequent vibration or shocks. It has internal teeth that allow it to lock into place, preventing your nuts and bolts from loosening and reducing the need for repairs and maintenance on your equipment.


The washer is made from marine-grade 316 stainless steel that's highly resistant to corrosion, so it's suitable for use in applications involving harsh chemicals or saltwater. The outer ring keeps your fixings secure by absorbing the impact of regular mechanical movement.


Thanks to its inside diameter of 8.4 mm and its standard metric M8 size, this washer is compatible with a variety of screws, nuts and bolts. It's a good option for use in the transport or mechanical engineering industries, where equipment is often subject to jostling or heavy jolts.