Products > Cortex Hidden Fastening Systems > Cortex Hidden Fastening System for PVC Trim
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The fastest, easiest way to hide the heads of your fasteners in your PVC Trim just got better!

Cortex now comes with the following product enhancements:

Shorter Trim Fastener: A new 2” fastener will replace the 2-3/4”. This new length delivers high levels of holding power but now offers versatility for applications such as Deck Fascia and Exterior Baseboards.

Faster Trim Screw Design: The dual lead thread design spins the fastener 50% faster for quicker installs. 

TORX® ttap® Drive System: This system is almost impossible to strip out and the fastener is easily removed. In addition, the stability button keeps the fastener straight through installation. 

Stronger Setting Tool: The Setting Tool has been optimized for extreme pro contractor use. Stronger bit material and industrial grade felt will enable you to install 350 fasteners on one Cortex Setting Tool.

No more caulking, sanding or painting needed! Each package comes complete with screws, plugs, and setting tools in a 50, 250 or 750 lin ft box.

Available in smooth or grained finish for the following brands:

AZEK® Trim
EX-Cel Trim
Koma® Trim
NuCedar Mills Trim
Trex® Trim
Versatex® Trim

Cortex Trim is also available directly from the following board manufacturers. For ordering information and stocking dealers, please click manufacturer links shown below to visit their websites.


CertainTeed Restoration Millwork®
Kleer® Trim
PALRAM Palight
Ply Gem PVC Trim
Royal S4S PVC Trim
Royal Celect Trim
Wolf® Trim

  • Available Options
  • Installation Instructions
  • Technical Data
  • Product Warranty Information
  • Related FM Products

SKU Fastener Lengths Color Packaging Size SKU
FMCTXT-AZ250TD 2 3/4" AZEK Traditional 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-AZ250TD
FMCTXT-AZ250FT 2 3/4" AZEK Frontier 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-AZ250FT
FMCTXT-KL250SM 2 3/4" Kleer Smooth 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools)
FMCTXT-KL250GN 2 3/4" Kleer Grain 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools)
FMCTXT-VT250SM 2 3/4" Versatex Smooth 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-VT250SM
FMCTXT-VT250TR 2 3/4" Versatex Timber Ridge 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-VT250TR
FMCTXT-KM250SM 2 3/4" Koma Smooth 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-KM250SM
FMCTXT-KM250WG 2 3/4" Koma Wood Grain 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-KM250WG
FMCTXT-TX250SM 2 3/4" TrexTrim Smooth 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-TX250SM
FMCTXT-TX250GN 2 3/4" TrexTrim Grain 250 lin ft box (includes: 375 screws, 400 plugs and 3 settings tools) FMCTXT-TX250GN
FMCTXT-AZ50TD 2 3/4" AZEK Traditional 50 lin ft box (includes: 75 screws, 100 plugs and 1 settings tool) FMCTXT-AZ50TD
FMCTXT-AZ50FT 2 3/4" AZEK Frontier 50 lin ft box (includes: 75 screws, 100 plugs and 1 settings tool) FMCTXT-AZ50FT
FMCTXT-TX50SM 2 3/4" TrexTrim Smooth 50 lin ft box (includes: 75 screws, 100 plugs and 1 settings tool) FMCTXT-TX50SM
FMCTXT-TX50GN 2 3/4" TrexTrim Grain 50 lin ft box (includes: 75 screws, 100 plugs and 1 settings tool) FMCTXT-TX50GN
FMCTXT-VT50SM 2 3/4" Versatex Smooth 50 lin ft box (includes: 75 screws, 100 plugs and 1 settings tool) FMCTXT-VT50SM
FMCTXT-VT50TR 2 3/4" Versatex Timber Ridge 50 lin ft box (includes: 75 screws, 100 plugs and 1 settings tool) FMCTXT-VT50TR
FMCTXT-KL750SM 2 3/4" Kleer Smooth 750 lin ft box FMCTX-AZ100ARAI
FMCTXT-AZ750TD 2 3/4" AZEK Traditional 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-AZ750TD
FMCTXT-AZ750FT 2 3/4" AZEK Frontier 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-AZ750FT
FMCTXT-KL750GN 2 3/4" Kleer Grain 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTX-AZ100ARAI
FMCTXT-VT750SM 2 3/4" Versatex Smooth 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-VT750SM
FMCTXT-VT750TR 2 3/4" Versatex Timber Ridge 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-VT750TR
FMCTXT-KM750SM 2 3/4" Koma Smooth 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-KM750SM
FMCTXT-KM750WG 2 3/4" Koma Wood Grain 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-KM750WG
FMCTXT-TX750SM 2 3/4" TrexTrim Smooth 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-TX750SM
FMCTXT-TX750GN 2 3/4" TrexTrim Grain 750 lin ft box (includes: 1125 screws, 1200 plugs and 6 settings tools) FMCTXT-TX750GN

Drill Specifications

Install the Cortex for PVC Trim screws using an 18 volt cordless impact drill. Some suggested drills are:

Milwaukee 2650-22 1/4" Hex Impact Driver 18V

DeWalt DC822KL Heavy-Duty 1/2" (13mm) 18V Cordless Impact Wrench

Bosch Impact Driver

Trim Board Dimensions

The FastenMaster Cortex Hidden Fastening System is designed for use with PVC Trim with actual thicknesses of 5/8" to 5/4".

General Fastening Guidelines

For horizontal trim boards less than 12" wide, use two Cortex fasteners at every framing member – rafter tail or wall stud. The screws should be 16" on center or closer. If you are attaching a vertical trim board (i.e., next to a door or a window) use two Cortex fasteners every 16" on center or closer.

If trim board is 12" or wider, use three screws. Each trim board must be fastened within two inches of the end of each board.

Predrilling

Predrilling is not required throughout the majority of the project. Predrilling is required when fastening within 1/2" of the end of a board and at mitered joints. Use a 3/16" drill bit for predrilled pilot holes.

Setting the Cortex Fastener

Use a cordless impact driver and the Cortex setting tool. Drive the Cortex fastener to the preset level below the PVC Trim surface. The Cortex screw must be driven perpendicular to the trim surface.
Cortex Tip: To remove a Cortex screw set below the trim surface, replace the Cortex setting tool in your impact driver with a #1 square drive bit. This allows full access to the seated screw.

Setting the Cortex Engineered Plug

To ensure a strong bond, the cored hole must be free of dirt or rain water.

Using Other Screws and Plugs

The Cortex System is designed to offer ultimate long term performance. The interaction between the PVC Trim, fastener and plug is essential. The Cortex connection is fully tested and warranted. Use of non-Cortex screw or non-Cortex plug will result in nullifying the FastenMaster warranty.


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