Nord Lock Washers

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What are Nord Lock Washers?
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    Metric Or Imperial?Metric
    SizeM5 (10UN)
    Total Pair Height2.2mm
    External Diameter (d2)9mm
    MaterialA4 Stainless Steel

    $3.84 / each.
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    Metric Or Imperial?Imperial
    Size1 Inch
    Total Pair Height3.2mm
    External Diameter (d2)39mm
    Material254 SMO Stainless Steel

    $9.31 / each.
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    Metric Or Imperial?Imperial
    Size1 Inch
    Total Pair Height3.2mm
    External Diameter (d2)39mm
    MaterialA4 Stainless Steel

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    Metric Or Imperial?Imperial
    Size1 Inch
    Total Pair Height5.8mm
    External Diameter (d2)48.5mm
    Material254 SMO Stainless Steel

    $19.99 / each.
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    Metric Or Imperial?Imperial
    Size1 Inch
    Total Pair Height3.2mm
    External Diameter (d2)48.5mm
    MaterialA4 Stainless Steel

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    Metric Or Imperial?Imperial
    Size1/2 Inch
    Total Pair Height2mm
    External Diameter (d2)19.5mm
    Material254 SMO Stainless Steel

    $3.17 / each.
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    Metric Or Imperial?Imperial
    Size1/2 Inch
    Total Pair Height2mm
    External Diameter (d2)19.5mm
    MaterialA4 Stainless Steel

    $3.17 / each.
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    Metric Or Imperial?Imperial
    Size1/2 Inch
    Total Pair Height3mm
    External Diameter (d2)25.4mm
    Material254 SMO Stainless Steel

    $5.33 / each.
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    Nord Lock Washers

    What are Nord Lock Washers?

    Nord-Lock Washers are a highly effective Anti-Vibration Locking Washer solution, created by Nord-Lock Group. Accu also supplies various types of Locking Nuts for other anti-vibration solutions.

    Nord Lock Wedge-Locking Solution

    Nord-Lock’s innovative wedge-locking solution is designed to prevent bolts from loosening by securing them to a nut or mating component with tension, as opposed to friction, as with traditional locking components. Each Nord-Lock Washer is supplied as a glued pair, with the two washers specifically designed to work in tandem to create the wedge lock.

    The Nord-Lock washer features cams on the inside which attach together, forming the wedge, whilst the radial serrations on the outside are designed to grip to the mating surface material and underside of the bolt respectively. As the cam inclination is at a greater angle than that of the thread pitch of the bolt, this creates a wedge-effect under the head of the bolt. As a result, the tension fastening is preventing the nut from rotating and thus stops the bolt from working loose by accident.

    All Nord-Lock Washers are manufactured with a laser mark of the Nord-Lock brand name to confirm authenticity, along with traceability information on the component itself.

    Anti-Vibration Junker Test Certified Lock Washers

    The preload of this fastening is even maintained efficiently under exposure to harsh vibrations, with many independent tests, such as Junker Vibration Tests, and certification authorities confirming the effectiveness of the Nord-Lock wedge-locking system. The Junker test, according to DIN 65151, is commonly seen as the most rigorous method for testing bolted joints. This test involves the exposure of the fastening to extreme vibrations, continually monitoring the clamping force of the fasteners to assess anti-vibration capabilities under transverse movements.

    Nord Lock Washer Materials

    Accu is able to supply Nord-Lock Washers in either A4 / 316L (EN 1.4404) Stainless Steel, or the high performance 254 SMO® austenitic Stainless Steel. For more information on the differences between Stainless Steel materials, please see our article on The Difference Between Ferritic, Austenitic And Martensitic Stainless Steels.

    Alternative Anti-Vibration Solutions

    Accu also offers Thread Locking Patches which can be applied to our range of Stainless Steel Screws and Bolts, which help to resist vibration-related loosening and leakage on threaded components. Locking Nuts are also available, including the popular self-locking Aerotight Nuts.


    Bespoke Nord Lock Washers Manufacture

    High precision, bespoke manufacture of Nord Lock Washers to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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