Cortex Driller Hidden Fastening System for Steel Deck Framing

Cortex Driller Hidden Fastening System is the fastest, easiest way to hide the heads of fasteners on deck boards used on steel deck framing.


  • Perimeter boards
  • Stairs
  • Breaker boards
  • A completely hidden fastened deck.


  • The 1-5/8” 410 stainless steel fastener requires no predrilling.
  • The TORX® ttap® Drive System is almost impossible to strip out. The stability button keeps the fastener straight through installation.
  • Simply drive the fastener to create a clean, cored hole.
  • Then, gently tap in the plug made of the same decking material to create a fastener-free surface.

Sizes and Availability

  • Available in 100 lineal foot boxes, complete with 224 screws, 300 plugs, and two setting tools per package.
  • Fastener and plug performance is guaranteed for the life of the project.
  • Available for all colors of Trex Transcend decking. Special order colors are available by calling FastenMaster.

Cortex Drillers without plugs: Cortex Drillers are now available in packages with bits and screws only, without plugs. To special order the deck plugs needed specifically for your project, please contact us directly at 1-800-518-3569.