White WOODGRAIN Cortex Hidden Fastening System for PVC and AZEK Trim by FastenMaster. Confidently secure your stairs, perimeter boards, and trim pieces with these Cortex Concealed plugs, made from the exact same material as the AZEK Trim itself for flawless coverage that hides unsightly screws and hardware. The included installation screws are crafted from Carbon Steel and are ACQ approved for use with treated lumber.
The included installation screws are available in a #8 x 2-3/4 inch size to accommodate your deck board thickness.