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 TimberTech Pro Legacy or TimberTech Pro Reserve deck boards for a perfect color and texture match.

Just pre-drill your TimberTech composite 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 Collated Cortex Hidden Fastening System for TimberTech Decking.

Cortex Replacement Plugs are available in the TimberTech Pro Legacy finishes of Ashwood, Espresso, Mocha, Pecan, Tigerwood, and Whitewash Cedar and the TimberTech Pro Reserve finishes of Antique Leather, Dark Roast, and Driftwood.