FastenMaster Cortex 2-1/2 in. L Cypress Torx TTAP Hidden Deck Fastener 350 lbThe Cortex Hidden Fastening System is the fastest, easiest way to hide the heads of your deck screws on market leading deck board types. Set the screw, set the plug, and are all set. Cortex offers a strong connection between the deck board and the joist a UPC: 683531031769 Manufacturer Part No: CTX100SFCY Brand Name: FastenMaster Length: 2 1 2 in. Drive Style: Torx TTAP Sub Brand: Cortex Product Type: Hidden Deck Fastener Packaging Type: Boxed