Hex nut with a serrated bearing surface beneath the flange that displaces material on the mating surface when the nut is torqued down, forming a connection that resists loosening. Used in applications where vibration is an issue.

Flange Locknuts

Hex nut with a serrated bearing surface beneath the flange that displaces material on the mating surface when the nut is torqued down, forming a connection that resists loosening. Used in applications where vibration is an issue.

  • 1/4-20 HEX FLANGE LOCK NUTS - USS

    $5.57 / Box of 25

  • 5/16-18 HEX FLANGE LOCK NUTS - USS

    $9.16 / Box of 25

  • 3/8-16 HEX FLANGE LOCK NUTS - USS

    $14.64 / Box of 25

  • 7/16-14 HEX FLANGE LOCK NUTS - USS

    $20.13 / Box of 25

  • 1/2-13 HEX FLANGE LOCK NUTS - USS

    $20.49 / Box of 25

  • 5/8-11 HEX FLANGE LOCK NUTS - USS

    $35.22 / Box of 25

  • 3/4-10 HEX FLANGE LOCK NUTS - USS

    $65.89 / Box of 25

  • 7/8-9 HEX FLANGE LOCK NUTS - USS

    $257.32 / Box of 25

  • 7/16-20 HEX FLANGE LOCK NUTS - SAE

    $40.85 / Box of 25

  • 1/2-20 HEX FLANGE LOCK NUTS - SAE

    $29.28 / Box of 25

  • 5/8-18 HEX FLANGE LOCK NUTS - SAE

    $47.95 / Box of 25

  • 3/4-16 HEX FLANGE LOCK NUTS - SAE

    $82.37 / Box of 25

  • 1-14 HEX FLANGE LOCK NUTS - SAE

    $289.17 / Box of 25

  • 7/8-14 HEX FLANGE LOCK NUTS - SAE

    $259.89 / Box of 25

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