Fastener remains hidden because the included plug is made from TimberTech Decking and color-matched to all Advanced PVC collections.
Unlike other hidden fasteners, Cortex fasteners can be used on the entire deck surface, including areas where deck boards are inaccessible, like against the house or a stair riser; or when the edge of the board is exposed in the final install, like stair noses or the perimeter.
Deck screw is high quality, ACQ-approved, and has a TORX® ttap® drive system for a wobble-free install.