Inconel nylon lock nuts, also known as nylocks, are a threaded hex nut with nylon insert collars that resist turning. The plastic nylon is placed at the end of the nut. When tightened, the nylon portion locks into the threads of the screws but does not get cut, allowing the nylon nut to be reused.

Once assembled and held in place, the nylon inserts perform as a locking device using friction, which will not gall, against the mating part for applications where a regular hex nut may come loose from vibration or shock loading. The nylon insert also provides reusability. When removed, the nylon relaxes and begins to return to its original shape providing continued use of the locking feature.

KD Fasteners, Inc.’s Inconel Nylon lock nuts hold strong in applications with a temperature up to 250F. Learn more about the different Inconel grades we offer including Inconel 600 lock nuts, Inconel 625 lock nuts, Inconel 718 lock nuts, and Inconel 725 lock nuts.

Standard inch sizes include:inconel nylon locknuts

  • Standard Pattern
    • NE
    • NM
    • Thin Pattern
      • NTE
      • NTM
      • Thin heavy pattern
        • NTU
        • Heavy Pattern
          • NU
    • Custom Upon Request 

Metric sizes include:

  • Din 985
  • ISO 7040

Whether you need a standard or custom size, KD Fasteners has a solution for you. Contact us today to learn more about our American-made Inconel Nylon lock nuts by calling 1-800-736-5014 or filling out our contact form.