Fastenmaster Cortex Hidden Fastening

Fasten Master in action using the Cortex Concealed Fastening System

Recommended by pro builders around the world, FastenMaster produces a variety of high-quality and dependable decking hardware. Browse our selection of top-of-the-line FastenMaster screws and concealed fasteners, plus popular plug systems.

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Collated Replacement Plugs make it easy to give your deck a fastener-free surface
from $19.99
Cortex plugs are made from the exact same composite material as TimberTech deck boards for a perfect match
from $18.99
Loose Cortex Plugs for Trex Decking by FastenMaster
from $17.09
Perfectly coordinating plugs conceal your installation hardware with the Cortex Concealed Fastening System for Barrette Decking.
from $71.09
The Collated Cortex Hidden Fastening System for AZEK Trim by FastenMaster includes the Cortex plugs, installation screws, and Cortex setting tools.
from $182.99
The Collated Cortex Concealed Fastening System is available in packs of 350 or 1050.
from $152.99
Cortex Concealed Fastening System for AZEK's TimberTech Decking
from $105.99
Collated Plugs for AZEK Trim, available in either Traditional White or Frontier White, can help finish the look of your deck with ease.
from $18.99
The Collated Cortex Hidden Fastening System for Trex Transcend Decking now offers plugs in collated strips.
from $95.39
The Cortex Concealed Fastening System for Trex Fascia includes a Counterbore Tool, TORX screw-setting tool, 100 epoxy-coated screws, and 105 color-matching plugs
from $72.89