The FastenMaster Cortex Fastening System is the fastest, easiest way to conceal the heads of your deck screws on specific composite deck types.

The FastenMaster® IQ Hidden Fastening System® allows deck builders to quickly and easily install boards of various materials, thicknesses, and widths all from above the deck.

Tiger Claw’s unique fastener securely attaches decking boards using claws to grab the edge of board in such a way that no fasteners are visible. It reduces splitting, splintering, cupping and rotting caused by nails and screws.