Trex Secret Fix Fastener

Where'd they go!

Trex Fasteners – Secret Fix


Innovation has inspired every one of our performance-grade outdoor liking products, right down to our efficient installation techniques and smart tools and hardware. In pursuit of the perfect deck, all Trex® decking lines come with a hidden installation option.

When using grooved-edge boards, our hidden fastening system installs between the deck boards, fastening them to the hoists with no visible screw heads on the walking surface. This precision also creates perfectly consistent spacing between the boards for a flawless look across the entire deck. This system includes a few simple components:

Featured hardware: Trex hidden fasteners


Trex Universal Hideaway Fastener

The Universal Fastener

This self-gapping hardware is the main fastener component that attaches two boards together for the horizontal decking area. It features a black headed stainless steel screw pre-loaded into the black glass filled nylon fastener for increased durability and easier installation. Each box contains 90 clips, 90 screws and driver bit. Each bucket contains 900 clips, 900 screws and two driver bits. Easy to follow instructions can be found here – Trex Installation Instructions.

Universal Fastener
  • Available in 5sqm boxes
  • Available in 50sqm bucket for large decking jobs
Trex Start Clip

The Start Clip

These are black, stainless steel fasteners exclusively for Trex composite decking and used to install the first row of deck boards so there are no exposed fixings. Each bag contains 36 clips, 36 screws and driver bit. Easy to follow instructions can be found here – Trex Installation Instructions.

Connector Clip
  • Available in 40sqm bags

Tiger Claw Pneumatic Nail Gun

Tiger Claw Nail Gun

The install tool features a unique nose piece that holds the hidden fasteners, Made from Corrosion resistant Stainless Steel, in the correct position every time. The installation gun fires a nail through the clip into the joist. This fastens the deck board to the joist in one step. More info

Snap-Loc for Trex
  • Tiger Claw Steel Fasteners come in buckets containing enough fixings for 50sqm