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Collated Cortex Hidden Fastening System for AZEK Trim – 2-3/4 inch Cortex screws and plugs – Traditional (50 LF)

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  • Conceals fasteners in Azek PCV Trim boards
  • TORX ttap drive system enables efficient screw driving
  • No Predrilling
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Product Details

About This Product

The FastenMaster Collated Cortex Hidden Fastening System for PVC Trim is the fastest, easiest way to hide trim fasteners in PVC Trim. Features TORX ttap Drive System which is almost impossible to strip-out and the deck fastener is easily removed. The stability button keeps the fastener straight through installation. Cortex plugs are made with the same material as leading trim boards, meaning you can achieve a perfect seamless finish every time. Once installed, Cortex plugs become a part of your trim board, expanding and contracting along with the boards around them – this means your plugs will not need to be replaced for the lifetime of the project. The plugs come pre-aligned on a collated strip, eliminating the need to fumble around with loose plugs and making installation 50% faster. To install, simply drive the Cortex fastener using the included setting tool – this will countersink the screw to the perfect depth. Then, place your Cortex plugs on top of the fastener holes with the grains aligned, and tap to finish. Designed to fasten 50 lineal feet of AZEK Traditional Trim. Includes 75, 2-3/4 inch carbon steel Cortex trim screws, 80 collated Cortex plugs and 1 Cortex setting tool. Cortex is trusted by PROs everywhere who are dedicated to craftsmanship and quality.


  • Compatible with AZEK Traditional trim
  • 50 lineal feet of coverage – Includes 75, 2-3/4 inch screws, 80 collated plugs and 1 setting tool
  • Hides fasteners in PVC trim boards
  • Cortex plugs come on a collated strip with pre-aligned grains – Eliminating the need to fumble around with loose plugs, making installation 50% faster
  • Cortex screws are made from high-strength carbon steel
  • Cortex plugs are made from the same material as market-leading trim boards, creating a 100% perfect match every time
  • The TORX® ttap® Drive System delivers a superior bit engagement for a stable wobble free installation
  • The Cortex setting tool is optimized for the PRO contractor – Stronger bit material and industrial grade felt will enable you to install 350 fasteners with one setting tool
  • Warrantied for the life of the project
  • Return Policy

Product Information

Internet # 322619762


Store SKU # 1009024540

Additional Resources

Shop All FastenMaster



Fastener Type

Composite Deck Screws


No Additional Items Included



Warranty / Certifications

Manufacturer Warranty

Limited lifetime

Questions & Answers

Q:Is the exposed part of the plug textured (woodgrain) of smooth? I need smooth.
by|Oct 14, 2023
1 Answer
Answer This Question

A:  Yes, they do come in a smooth variety; ask for "Traditional" style plugs.

by|Oct 23, 2023
    Q:Do the plugs com in matching colors to the boards
    by|Aug 23, 2023
    2 Answers
    Answer This Question

    A:  I need to install azek pvc brickmould around French door plant on stucco vs to window frame. Last installer used lag screws to fasten wood brickmould. Would these work? Any suggestions?

    by|Oct 11, 2023

      A:  Yes, Cortex plugs are cored from the same board. No mix and match with Cortex. They will be virtually seamless when installed.

      by|Aug 23, 2023
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        Customer Reviews

        4.6 out of 5

        • 4.6 out of 7 reviews
        • 0% recommend this product
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        Showing 1-7 of 7 reviews
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        Once you start using it will never go with regular screws or nails.
        • Verified Purchase
        Good product, set screw head depth perfectly. Did not need pilot holes. Expensive.
          This system is really really good and works quite well. My only complaint would be that it's not always easy to remove a screw once it is set and the price is a little on the steep side.
          • Verified Purchase
          Showing 1-7 of 7 reviews