Product Review

Secure your fasteners with confidence with these genuine Nord-Lock brand washers.
These washers have cams or wedges on one side, with a lead angle greater than a thread angle, and radial teeth or ribs on the other side. The washers are installed cam face to cam face.
When tightening the fastener to preload, the teeth penetrate and seat against the joint material and the nut and/or fastener head.
When subjected to vibration the interacting cams create a wedge action which prevents the fastener from vibrating loose.
For Use With Grade 5 and Grade 8 Bolts and Metric Grade 8.8, 10.9, and 12.9 Bolts
Material:Zinc Plated Carbon Steel
Hardness:Through Hardened: Min. 44HRC, Max. 51 HRC
Dimensions:
13.5mm (17/32) Outer Diameter
8.7mm (11.32) Inner Diameter
2.7mm (5/64) Thick(when paired together)
From the manufacturer:
The Nord-Lock original washers 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, ship building, forestry and agriculture, heavy vehicles, and military.
Our washers are approved by several industry standards and specified by numerous international companies.
Over the operational life cycle, Nord-Lock wedge lock washers give increased operational reliability and lower maintenance costs while significantly reducing the risks of production stops, accidents and warranty claims.