FastenMaster Cortex System for Trex Fascia - 50 LF - 1-3/4"

Quick ID: Q43215

from $66.97

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Why We Love ItThis product includes everything required for a fascia project: plugs, screws, counterbore tool and setting tool.


  • 50 linear feet of coverage
  • Each box includes (100) 1-3/4” screws, (105) plugs, (1) counterbore tool and (1) setting tool
  • Conceals fasteners for the fascia
  • Plugs are made Trex deck boards, ensuring plugs match the fascia
  • Conceals the heads of fascia screws
  • 1x8 Fascia boards install vertical row of (2) fasteners every 18"; 1x12 fascia board install (3) every 18"


The Cortex Fascia Hidden Fastening System is the strongest, easiest way to hide fasteners in Trex Fascia Boards. Cortex for Fascia is engineered for fascia expansion/contraction and plugs are made from Trex fascia board making for a perfect color match. The TORX ttap Drive System is almost impossible to strip-out with the patented stability button that keeps the fastener straight throughout the installation.

The Cortex for Fascia is available in a 50 lineal foot complete kit that includes (100) 1-3/4” screws, (105) plugs, (1) counterbore tool and (1) setting tool. The 1-3/4" screws feature a #20 TORX ttap drive system, making it easier to drive tools in a vertical application. The counterbore bit drills an oversized pilot hole for the screw and a hole for the plug, all at the perfect height. The cortex fascia plugs are made from Trex fascia boards. With an exact color and texture match, the system creates a smooth finished look.

FastenMaster recommends using (3) fasteners every 18" OC for 12" fascia boards and (2) fasteners every 18" OC for 8" fascia boards. It is recommended to consult the manufacturer installation instructions prior to installation.


Sub BrandCortex
Compatible MaterialsTrex Transcend
Compatible Tools18V or Greater Cordless Drill; Impact Driver is Not Recommended
Coverage (Linear Feet)50
Drive Size#20
Driver Bit IncludedYes
Head TypeTORX ttap Drive System
Included Accessories(100) 1-3/4" Screws, 105 Plugs, 1 Counterbore Tool, and 1 Setting Tools
MaterialCarbon Steel Screws, Trex Board Plugs
Number of Plugs105
Number of Screws100
Recommended Spacing(3) Fasteners every 18" OC for 12" Fascia Boards, (2) Fasteners every 18" OC for 8" Fascia Boards,
Screw Drive TypeTORX ttap Drive System
Screw Head StyleTORX ttap Drive System

Weights and Dimensions

Weight (Pounds)1.5
Length (Inches)1.75

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