Cortex 2-1/2" Fastening System for EverGrain Decking - 100 Square Feet

by FastenMaster
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FastenMaster Cortex 2-1/2" Fastening System for EverGrain Decking -100 Square Feet is a fast and easy way to conceal fasteners and screw heads when installing decking boards. Installation is easy by using two screws per joist connection. Cortex is available in EverGrain colors. The FastenMaster Cortex box includes everything needed, including screws, plugs and setting tools. FastenMaster recommends installing with an 18 volt cordless drill with 1/2" chuck or a corded drill with 1/2" chuck.


  • Compatible with EverGrain Classic Collection
  • Conceals fasteners for the entire deck, including first and last boards, perimeter and stairs
  • Each box includes screws, plugs and set screws
  • Plugs are made from EverGrain deck boards, ensuring plugs match the decking
  • Conceals the heads of deck screws
  • Strong connection between deck boards and joists
  • TORX ttap Drive System
  • New thread design reduces installation torque and dramatically increases fastener strength
  • Length of 2-1/2"
  • FastenMaster TC-G and Cortex - Complete Hidden Deck Fastening System
Sub BrandCortex
Compatible MaterialsEverGrain Decking
Coverage75 SQ/FT for 12" OC, 100 SQ/FT for 16" OC
Head TypeTORX ttap Drive System
Included AccessoriesIncludes Screws, Plugs and 3 Setting Tools
Length - Inches2.5
Number of Plugs400
Number of Screws350
Package Quantity350
Recommended Spacing16" OC or Closer
Screw Head StyleTORX ttap Drive System
Screw Size#9
Ships to HI/AKNo