Philidas design and manufacture self-locking nuts and specialist fasteners for industrial, automotive, and domestic applications.

Philidas specialises in the design and manufacture of self-locking nuts for a diverse range of industrial and domestic applications, including: automotive, rail, aerospace, earth moving plant equipment, mining, renewable energy and electrical appliances.

Philidas nuts lock on a bolt in any position, designed to create the most convenient and practical fastening method for any industry or domestic application. Even in high performance environments where vibration may occur, our locking nuts are developed to stay in place. They also help reduce assembly time, use fewer components and are more cost effective than alternative methods.


  • The most versatile self-locking nut
  • Suitable for use in high or low temperature with no effect on performance, even from chemicals
  • Low prevailing torques &.. can be applied on multiple occasions
  • Turret nut can be assembled with the locking element leading onto a male thread