Nord-Lock Steel Wedge Lock Washers, Bolt Size: #8 or M4, Outer Diameter: 0.35", Enlarged Outer Diameter, Through Hardened Steel with Zinc Flake Delta Protekt ® Coating, NORD NL4-SP

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. Nord-Lock wedge lock washers are used in numerous industries such as energy, transportation, offshore, mining and quarrying, construction and bridge building, manufacturing and processing, shipbuilding, forestry and agriculture, heavy vehicles, and military.