Nord-Lock® Original Washer

Nord-Lock original wedge-locking washers secures bolted joints, even when exposed to severe vibration and dynamic loads.

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How it works

THE DETAILED VIEW

When tightening, the bolt’s serrations are embedded into the mating surfaces. As the cam angle α is greater than the thread pitch β, a wedge-effect is created.

The benefits awaiting you

Prevents bolts from loosening even under severe vibration and dynamic loads

Materials withstanding corrosive, acidic, and high temperature environments

Locking function is not affected by lubrication

Accurate preload with defined and uniformed friction

Wide range of metric and imperial sizes

High corrosion resistance

High reusability potential

Customized sizes

Increase operational reliability, lower maintenance costs

Reduced risks of downtime and accidents.

PRODUCT INFORMATION

Find out everything you need to know about our washers, from material specifications to product guidance for your application.

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USER GUIDE

Nord-Lock wedge-locking washers are suitable to secure bolted connections in numerous applications and situations.

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DIMENSION GUIDE

Get accurate fastener data quickly and easily for your bolted joints calculation with our web-based dimension guide.

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APPLICATIONS

Nord-Lock wedge-locking washers utilize tension instead of friction in order to secure bolted joints exposed to severe vibration and dynamic loads.

Over the operational life cycle, Nord-Lock washers offer increased operational reliability and lower maintenance costs, while significantly reducing the risks of production stops, accidents and warranty claims.

From the depths of the sea to outer space and in imposing bridges, anywhere where safety is non-negotiable, you find our washers.

Explore Nord-Lock washers today

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Leading the way with CE-marked securing washers

High performance and dedication to safety are in our DNA. The fact that we were the first company to introduce CE marked securing washers and are unique in offering these for all types of bolted connections in European steel construction is proof.

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HIGHEST CORROSION RESISTANCE

Nord-Lock steel washers have been tested for a minimum of 1,000 hours in the Neutral Spray Test*, one of the most rigorous tests to verify corrosion resistance, placing our washers at the top of the industry in maintaining optimal performance, whatever the environment.

* NSST according to ISO 9227

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SP WASHERS

Nord-Lock SP washers have the same wedge-locking design as original washers, but with an enlarged outer diameter. The SP washers are designed to be used together with flanged bolts and nuts (ISO 4161,4162) on oversized and slotted holes, or on sensitive surfaces and soft materials.

Black wedge-locking washers

Nord-Lock washers are also available in black. Nord-Lock washers are also available in black. Expect the same unmatched safety, corrosion resistance, and reliability, but with a black finish that can be crucial in specific critical mission environments. Stocked range M6-M24 excluding SP.

CERTIFIED PERFORMANCE

Our washers have been rigorously tested and approved by independent institutes and authorities, ensuring that our washers meet the most stringent standards and safety requirements.

Among these are the Junker test – the most rigorous method for testing bolted joint, where the joint gets exposed to transverse displacement, while the preload is continuously measured. Nord-Lock washers consistently outperform the competition in this test.

You can find more details about the articles covered by our certificates here.

In safe hands

FULL TRACEABILITY

From the laser mark, trace your washers' origins to raw materials and production controls for that batch.

RIGOROUSLY TESTED

Tested under extreme conditions by independent institutes and extensively certified to meet any bolting challenge.

AVAILABILITY

Nord-Lock’s technical support and global distribution reaches every corner of the world.

Additional product range

For any industry or application where safe, reliable bolting is critical.

NORD-LOCK® X-SERIES WASHERS

Maximum security for critical bolted joints exposed to spontaneous bolt loosening and slackening.

NORD-LOCK® STEEL CONSTRUCTION WASHERS

Optimal contact between bolts and washers used in steel construction applications, including HV and HR sets.

NORD-LOCK® WHEEL NUTS

High clamping force that eliminates wheel loosening on heavy vehicles operating under extreme conditions.

NORD-LOCK® CUSTOMIZED SOLUTIONS

Custom designed bolting solutions for your unique application requirements.

CAD FILES

Download the CAD files you need for your Nord-Lock products, compatible with a variety of CAD software.

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TORQUE information

Use our torquelator and guidelines to find the right torque and preload you need for your application.

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MANUALS AND DOCUMENTS

Get any supportive documents you might need, from technical guides to user manuals.

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Lifetime warranty

Discover the advantages of a lifetime warranty guaranteeing performance in every step of your bolting journey.

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CUSTOMER SUCCESS STORIES

Customer Cases

Secure machinery for the toughest forestry harvesting

Find out how this global supplier of forestry grapple harvesters builds robust and flexible machinery that will survive even the toughest of forest harvesting.

Customer Cases

Taking a weight off your shoulders

Braving the elements and getting close to Nature can be an enlightening experience, especially for children. But proper planning is crucial.

Customer Cases

Securing Bolts in Outer Space

The upper atmosphere can be tough on equipment. Developing a rocket engine for this environment is a huge challenge. If there are complications in the process, the engine and its associated parts might be damaged.

Nord-Lock® Original Washer

The benefits awaiting you

PRODUCT INFORMATION

USER GUIDE

DIMENSION GUIDE

APPLICATIONS

Explore Nord-Lock washers today

In safe hands

FULL TRACEABILITY

RIGOROUSLY TESTED

AVAILABILITY

Additional product range

NORD-LOCK® X-SERIES WASHERS

NORD-LOCK® STEEL CONSTRUCTION WASHERS

NORD-LOCK® WHEEL NUTS

NORD-LOCK® CUSTOMIZED SOLUTIONS

CAD FILES

TORQUE information

MANUALS AND DOCUMENTS

Lifetime warranty

CUSTOMER SUCCESS STORIES

Secure machinery for the toughest forestry harvesting

Taking a weight off your shoulders

Securing Bolts in Outer Space

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