Molly Jack Nut Inserts

The Jack Nut or Molly threaded insert is an economical blind fastener designed for assembly-line use in thin, soft, or brittle materials. When tightened, the body collapses to form legs which grip the inside of the mounting surface, leaving a permanent, reusable threaded insert. Available in steel, brass and steel with PVC or Raintite coating.
Features include - Fastens in blind holes, Won't distort or deform soft plastics or thin sheet metals, inexpensive and easy to use, Not hole-size sensitive, Fastens securely despite burrs or uneven substrate, Available with 'Plastisol' coating for sealing purposes, Suitable for a wide grip range, Can be set with manual or pneumatic tools, Removable, Strong fastening in thin sheet metal, Fast setting with pneumatic tools, No distortion to thin sheet metal.
Molly Jack Nut Inserts
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  1. M52511 Marson MQN Series
    M52511 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.197 Inch
    Maximum Grip
    0.394 Inch
    Grip Range
    0.197 - 0.394 Inch
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  2. M32530 Marson MQN Series
    M32530 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.000 Inch
    Maximum Grip
    0.197 Inch
    Grip Range
    0.000 - 0.197 Inch
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  3. M22530 Marson MQN Series
    M22530 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.000 Inch
    Maximum Grip
    0.197 Inch
    Grip Range
    0.000 - 0.197 Inch
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  4. M32550 Marson MQN Series
    M32550 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.000 Inch
    Maximum Grip
    0.197 Inch
    Grip Range
    0.000 - 0.197 Inch
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  5. M52554 Marson MQN Series
    M52554 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.197 Inch
    Maximum Grip
    0.394 Inch
    Grip Range
    0.197 - 0.394 Inch
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  6. M22584 Marson MQN Series
    M22584 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.00mm
    Maximum Grip
    5.00mm
    Grip Range
    0.00 - 5.00mm
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  7. M32585 Marson MQN Series
    M32585 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    5.00mm
    Maximum Grip
    10.01mm
    Grip Range
    5.00 - 10.01mm
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  8. M32586 Marson MQN Series
    M32586 Marson MQN Series

    MQN Series

    IN STOCK
    Minimum Grip
    0.00mm
    Maximum Grip
    5.00mm
    Grip Range
    0.00 - 5.00mm
    Body Material
    Steel
    Material Detail
    Steel 1008/1010
    Body Finish
    Zinc Clear Trivalent Chromate
    View Offer
  9. 310040-B Bayfast Threaded Inserts (Bayfast)
    310040-B Bayfast Threaded Inserts (Bayfast)

    Threaded Inserts (Bayfast)

    IN STOCK
    Minimum Grip
    0.000 Inch
    Maximum Grip
    0.197 Inch
    Grip Range
    0.000-0.197 Inch
    Body Material
    Steel
    Body Finish
    Zinc Clear
    ECCN
    EAR99
    View Offer
  10. 310020-B Bayfast Threaded Inserts (Bayfast)
    310020-B Bayfast Threaded Inserts (Bayfast)

    Threaded Inserts (Bayfast)

    IN STOCK
    Minimum Grip
    0.000 Inch
    Maximum Grip
    0.197 Inch
    Grip Range
    0.000-0.197 Inch
    Body Material
    Steel
    Body Finish
    Zinc Clear
    ECCN
    EAR99
    View Offer
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What Can You Use to Install a Jack Nut?

When setting a jack nut, you can use either manual or pneumatic tools. However, you can also use a jack nut tool. These are specifically designed for jacknut installation and may come in the form of a wrench, air tool or hand tool. Whatever you decide on, you'll still get the same benefits that come with using jack nuts.


Find Jack Nuts at Bay Supply

We have a huge blind jack nut selection with a variety of sizes and styles. Additionally, you can count on Bay Supply to carry top brands like POP and Marson. And as always, you'll get free ground shipping on orders over $99 — so buy your jack nuts in bulk!

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