Model# FMCTXCL-TX1LFENTP. Screws measure 2.5"L x 1/4" thick. The Cortex hidden fastening system is specifically designed for use with Trex Enhance composite decking boards. Includes color-matched plugs that conceal screw heads for a seamless, professional finish. Like-new condition, no damage or missing components reported. Ideal for new deck installations or deck board replacements.