TORX PLUS® Tamper-Resistant Drive System

Offers restricted access in the field along with all the assembly benefits of the TORX PLUS® Drive.

Flyer (92 KB)
TORX PLUS® Drive System Catalog (1,123 KB)
Fastening Solutions Catalog (2,399 KB)


Manufacturers the world over are discovering how the TORX PLUS® Drive increases torque transfer, extends tool life, and increases productivity on their assembly lines. Now these benefits are available in a unique tamper-resistant version. When combined with a countersunk or button head design, the tamper-resistant TORX PLUS® fastener is extremely difficult to remove without the proper tool.


  • Non-symmetrical, elliptically-based geometric configuration
  • Five lobes with solid post in center of recess
  • Drivers only available to OEMs and authorized service personnel
  • Concentricity and tight tolerances of tamper-resistant TORX PLUS® tools make them very difficult to counterfeit


  • Allows optimum torque transfer and increased driveability
  • Allows improved productivity on the assembly line
  • Non-symmetrical shape provides increased resistance to tampering
  • Limited access to proper drivers maintains integrity of system

Design Guidelines

  • Fastener Sizes: M2.5 to M25 (#3 to 1″)
  • Head Design: Countersunk or button head design recommended