snippet: The FastenMaster Collated Cortex hidden fastening system is the fastest, easiest way to hide fastener heads when installing Trex decking. The Cortex hidden fastening system is the fastest, easiest way to hide fasteners in composite, capstock and PVC decking boards - now it's 50% faster. Cortex can hide screws on stairs, perimeter boards, and more.Find the HD DCK FSTNR WNCHSTR GRY at Ace.

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