FastenMaster's Cortex Hidden Fastening System creates a smooth, unblemished decking surface by hiding your fasteners. Each plug is made from the exact same composite material as your Trex Transcend or Trex Select deck boards for a perfect color and texture match.

Just pre-drill your Trex deck board, countersink your screw below the surface and insert the color-matching plug to fill the gap and completely hide your fastener. These Cortex Replacement Plugs come in packs of 40. To sink your screws to the perfect depth, order plugs along with steel screws and FastenMaster's screw-setting tools in our Cortex Hidden Fastening System for Trex Decking.

Cortex Replacement Plugs are available in either loose or collated. Finishes for the Trex Transcend are Gravel Path, Havana Gold, Island Mist, Lava Rock, Rope Swing, Tiki Torch, and Vintage Lantern. Finishes for th Trex Select are Madeira, Winchester Grey, and Woodland Brown. Finishes for the Trex Enhance are Beach Dune, Clam Shell, Coastal Bluff, Foggy Wharf, Saddle, and Toasted Sand. Trex Signature has finishes of Whidbey, and Ocracoke.