TimberTech® is focused on fasteners. Opt for the best fastening systems to install your deck. These high-quality fasteners give decks added strength and integrity for years to come. Square-shoulder boards allow for top-down fastening, while grooved boards are designed for hidden clip fasteners. TimberTech® Cortex® Screw and Plug is a hidden fastener system featuring a high quality, ACQ-approved, specialty deck screw with a Torx® ttap® drive system.
Included color-matched plugs are made from TimberTech® Advanced PVC by AZEK® Harvest Collection® deck boards to hide the fastener. It can be used on the entire deck surface, including stairs and perimeters, where other hidden fasteners cannot. Installation requires pre-drilling with a 7/32 in. drill bit.
This pack includes 350 screws, 400 plugs, and 2 bits.
Tools Required: safety glasses, router with slot cutting blade, drill (Corded or cordless (18V battery) drill with 1/2 in. chuck- Impact Drivers are not recommended when using TimberTech® Cortex)
Pre-drilling with a 3/16 in.drill bit is always required when installing Cortex in TimberTech® decking.
The Cortex Setting Tool must be used to set the Cortex screw to the proper depth.
The Cortex fastener must be driven perpendicular to the deck surface for proper fit and ideal finished look.
The cored hole must be free of debris or moisture. Use a smooth hammer head to set the Cortex plug.
The interaction between the deck board, screw, and plug is essential. Use of non-Cortex Screws or non-Cortex plugs will nullify the warranty. End and Edge Distance Minimums
Pre-drilling is required for installation into TimberTech® decking or mushrooming and splitting will occur.
Pre-drilling should be done with a 3/16 in.drill bit to create the proper pilot hole.
No fasteners should be installed closer than 3/4 in. from the end or edge of the board. Restricted Cortex Uses The TimberTech® Cortex System is designed for traditional elevated deck surfaces.
The following applications require a different fastening method:
Sleeper systems: Framing rests directly on the ground or roof deck.
For attaching fascia and riser boards: TimberTech® TOPLoc Fascia Fasteners should be used.
Docks or decks with framing members in constant contact with saltwater.
Deck materials with a scalloped bottom such as, but not limited to PRO Terrain, EDGE Prime, EDGE Prime+, and Reliaboard.