NORD-LOCK® X-SERIES WASHERS

USER GUIDE

How to use our Nord-Lock X-Series washers.

Instructions

Use our joint guide to help you use Nord-Lock X-series washers correctly.

Link to full version of Nord-Lock X-Series Washers User Manual

Tapped holes 
Nord-Lock X-series washers safely lock the bolt against the underlying surface. 

Counterbores 
The outer diameter of Nord-Lock X-series washers is designed for counterbore holes (i.e., the washers fit under the head of standard bolts). 

Through-holes
As for all locking washers, through-holes require two pairs of Nord-Lock X-series washers — one pair for securing the bolt and a second pair for securing the nut. 

Stud bolts
Nord-Lock X-series washers safely lock the nut on stud bolts and eliminate the need for adhesives. 

Applications with large / slotted holes
To optimize the load distribution for applications with large/slotted holes, use a flanged nut/bolt together with Nord-Lock X-series “SP” washers with enlarged outer diameter. 

Designs where Nord-Lock X-series washers are not recommended:

  • Mating surfaces that are not locked in place (see left figure)
  • Mating surfaces harder than the washers
  • Wooden mating surfaces

EXPLORE WHAT MAKES FOR BOLTING SUCCESS

Bolting Tips

Durable Bolted Joints in Steel Construction

Nord-Lock's steel construction experts share vital experience and knowledge to achieve durable bolted joints for steel structures.

Bolting Tips

How Much Force is Required to Tighten a Bolt?

You can use the weight of heavy animals to understand the exponential torque force required to tighten larger bolt sizes

Bolting Tips

The Experts: Can I Use Nord-Lock Wedge-Locking Washers on Painted Surfaces?

Nord-Lock wedge-locking washers are an effective bolt securing method for use on coated surfaces in offshore industries

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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Explore our washers today

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