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

    $5.06 / Box of 25

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

    $8.33 / Box of 25

  • 3/8-16 HEX FLANGE LOCK NUTS - USS

    $13.31 / Box of 25

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

    $18.30 / Box of 25

  • 1/2-13 HEX FLANGE LOCK NUTS - USS

    $18.63 / Box of 25

  • 5/8-11 HEX FLANGE LOCK NUTS - USS

    $32.02 / Box of 25

  • 3/4-10 HEX FLANGE LOCK NUTS - USS

    $59.90 / Box of 25

  • 7/8-9 HEX FLANGE LOCK NUTS - USS

    $233.93 / Box of 25

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

    $37.14 / Box of 25

  • 1/2-20 HEX FLANGE LOCK NUTS - SAE

    $26.62 / Box of 25

  • 5/8-18 HEX FLANGE LOCK NUTS - SAE

    $43.59 / Box of 25

  • 3/4-16 HEX FLANGE LOCK NUTS - SAE

    $74.88 / Box of 25

  • 1-14 HEX FLANGE LOCK NUTS - SAE

    $262.88 / Box of 25

  • 7/8-14 HEX FLANGE LOCK NUTS - SAE

    $236.26 / Box of 25

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