The Cortex Fascia Hidden Fastening System is the strongest, easiest way to hide fasteners in Trex Fascia Boards. Cortex for Fascia is engineered for fascia expansion/contraction and plugs are made from Trex fascia board making for a perfect color match.
TORX ttap® Drive System
This system is almost impossible to strip out. In addition, the stability button keeps the fastener straight through installation.
