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Philidas Nuts


Butler Fasteners Limited in Nottingham supply a range of self-locking nuts including Philidas Nuts.

The Philidas Industrial Self-locking Nut is a one-piece, all metal self-locking nut with a collar above the hexagon. Two slots, in the same plane, are cut in the collar and the metal above the slots set to depitch the threads. When the nut is tightened on to a male thread the thread is gripped on the flank.

The Philidas Industrial Nut is suitable for high or low temperature conditions and the locking performance is unaffected by oil, petrol or other liquids and vapours.

Philidas Industrial Nuts are available in:

  • Metric
  • BA / BSW / BSF
  • UNC / UNF
  • Self-Colour or BZP Finish as Standard.

Click here to download Philidas Nut brochure or click here to contact us.


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