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.; ; Brand Name: FastenMaster Sub Brand: Cortex Callout Size: No. 10 Length: 2-1/2 in. Color: Lava Rock Drive Style: Torx Ttap Head Type: Button Head Product Type: Hidden Deck Fastener Number in Package: 224 pc Self Tapping: Yes Material: Steel Finish: Epoxy Coated Driver Bit Included: No Thread Type: Coarse Self Drilling: No Packaging Type: Bucket Indoor or Outdoor: Outdoor
