Nord-Lock Original Washers, 254 SMO, SP LARGE O.D
Nord-Lock washers secure bolted joints with tension instead of friction.

Nord-Lock 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. Nord-Lock 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.

Choosing the right Nord-Lock washer size, material and diameter. A helpful guide:
Bolt size:
Equals the washer designation. E.g NL6 washers fit with M6 bolt, NL1/2 fits with 1/2 bolt etc.

Washer material:
For a steel bolt use steel washers and for stainless steel bolts use stainless steel washers.

Washer outer diameter:
Washers with a standard outer diameter are the most commonly used, but if you have an enlarged or slotted hole, we recommend washers with an enlarged outer diameter (SP) for better load distribution.

Require any further assistance? Contact us at or call 01268 288880 thanks.

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