TORX PLUS® Tamper Resistant

"TORX® and TORX PLUS®  are registered trademarks of Acument Intellectual Properties LLC."

Since its introduction, TORX PLUS® Drive has consistently outperformed every other drive system. The true 0˚ drive angle virtually eliminates the radial forces and stresses. Reduced contact stress also reduces coating damage that can occur in other recess designs. The straight, vertical sidewalls of the TORX PLUS® Drive System virtually eliminates cam-out. The elliptically-based geometric configuration of the TORX PLUS® Drive System maximizes engagement between driver and fastener. Ergonomic studies demonstrate that the TORX PLUS® Drive System can reduce fatigue and muscular stress during the manual assembly of fasteners. That is because little or no end load is required to keep the driver engaged with the fastener. Its longer tool life and optimal torque transfer have enhanced product reliability, increased productivity, and reduced total assembly costs on assembly lines in a multitude of industries around the world.

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This unique TORX PLUS® variation incorporated a five lobe design and a solid post formed in the center of the recess.

  • When combined with a countersunk or button head design, the fastener is extremely difficult to remove without a special tamper-resistant TORX PLUS® Drive tool.
  • Installation is quick and easy with the proper tool
  • Recognized as the only truly tamper-resistant drive system – The preferred internal drive system defined in SAE specification J2317 (Tamper Resistance for Adjustable Parameters on Diesel Fuel Injection Pumps)
  • Available in fastener sizes M2.5 – M25 (#3 to 1”)