Pro-Plug System for Composite Decks

The next level in composite fixing.

Integrated Plug Fastening System for PVC/Composite Decks and PVC Trim

Pro Plug® System for Composite Decks


  • Trex® approved plugs now available in complete kits and plug-only packs.
  • Inventory management program: purchase plugs and screw packs separately.

The Pro Plug® System for PVC and Composite is a superior and easy-to-install plug fastening system for PVC/Composite Decking and PVC Trim. Plugs are available for leading decking and trim products (check for updates to the detailed product listings in the Packaging section below):

(1) Screws: Epoxy Coated Carbon Steel, Grade 305 or Grade 316 Stainless Steel. Various lengths available (5 cm – 7.5 cm”). All screws feature a star drive recess and are ACQ approved.The System consists of the following components:

(2) PVC/Composite Tool: Drives screws to the correct depth every time in deck and trim applications. Features a No Cam-Out Auto-Stop™ mechanism that prevents the screw from stripping and a free spinning stop collar that protects the board surface.

(3) Plugs: Made from actual PVC/Composite deck or trim material, so they match perfectly.


Pro Plug System for PVC installation diagram.

Product Features

PVC/Composite Tool

Auto-Stop™ Mechanism

Once target depth is reached, the Auto-Stop™ mechanism inside the tool disengages the driver bit and stops the screw from driving further, preventing the screw recess from stripping.

Free Spinning Stop Collar

The free spinning stop collar is fitted with a rubber O-ring to prevent damage to the work surface.

Special bits for Deck and Trim Applications

Driver bits used with the PVC/Composite Tool are replaceable. There are two types of driver bits: DECK bits and TRIM bits, each optimised for their specific application. Both PVC Tool packages and PVC Deck/Trim Kits include spare bits.



Stainless and Epoxy Coated Star Drive Fasteners:

Stainless fasteners are 10 x 5-2.5/5 cm. Epoxy Coated fasteners are 10 x 5-7.5/10 cm. Both fasteners are ACQ approved. When driven below the surface with the PVC Tool, both fasteners create a perfect hole for the plug, without pre-drilling.




Plugs are made from actual deck and trim board material, so the color and grain match perfectly.

Pro Plug System for PVC components and features.


1. Insert the appropriate driver bit into the Pro Plug® PVC/Composite Tool. The “DECK” bit is for PVC/Composite decking; the “TRIM” bit is for PVC trim.

2. Drive the screw with the PVC/Composite Tool in a straight and stable fashion with a standard drill.* The screw is set when the Auto-Stop™ mechanism engages fully. In most deck and trim materials, the tool makes a pop sound indicating that the screw has reached the correct depth below the board surface.

3. Insert the plug into the hole above the fastener and tap it into place with a smooth face steel hammer until it is flush with the deck/trim surface. Keep hammer head flat with the board to prevent surface marring.

Further instructions and installation notes are included in every PVC/Composite Deck or Trim Kit.

*Note: Impact drivers may not set screws to the correct depth. Standard drills are recommended.


Pro Plug System for PVC and Composite is available in the following pack sizes. Additionally, all packs are available with Grade 316 Stainless Steel fasteners as well as #10 x 65mm fasteners (epoxy coated, grades 305 or 316 stainless steel).

Pro Plug® PVC/Composite Tool
Item no.