Jet nut

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A jet nut,[1] also known as a K-nut,[1][2][3] is a special type of hex locknut that is commonly used in the aerospace and automotive racing industries.[3]

It has a flange on one end of the nut, the hex is smaller than a standard sized hex nut, and it is shorter than a standard hex nut. It achieves its locking action by using an elliptical offset on the un-flanged end of the nut.[4]



  1. ^ a b, retrieved 2012-01-02 .
  2. ^ Racing hardware & fasteners (PDF), retrieved 2008-12-03 [permanent dead link].
  3. ^ a b Smith, pp. 106–107.
  4. ^ Fasteners, retrieved 2008-12-03 .