Product details:

Nord Lock Wedge Locking Washer - Carbon Steel - Zinc Flake Coated - M10 - Pkg of 200 Nord-Lock washers secure bolted joints with tension instead of friction. It is a high quality product with documented success in many industries worldwide. Nord-Lock wedge lock washers have been rigorously tested and approved by independent institutes as well as certification authorities. They are approved by several industry standards and specified by numerous international companies.