Designed to be driven beneath the deck surface, these 2 1/2" plug-based screws are ideal for fastening Trex solid core decking (Trex Signature, Lineage, Transcend, and Select decking lines). Available in two different pack sizes, they are suited to tackle projects of any scale. Designed to be driven beneath the Deck surface, these 2 ½-inch Plug-based Screws are ideal for fastening Trex Solid Core Decking (Trex Signature, Lineage, Transcend, and Select Decking lines) Black It’s more than just a Screw; it’s a promise of an easier install with unmatched strength and the tri-lobe design makes dense boards no challenge, minimizing both effort and any potential for mushrooming and Tri-lobe shank design streamlines driving into even the densest boards Trex Hideaway Composite Plug Screws offer the perfect blend of aesthetics and functionality and are available in two different pack sizes, they are suited to tackle projects of any scale Composite Plug Screws specialized machine slot cut ensures minimal disruption during installation patented HEXSTIX drive system maximizes accuracy and dependability and sharp upper threads expertly shear away debris for a smooth drive and no mushrooming STICK-TIGHT technology guarantees the perfect bit fit with every drive The pack contains 350 screws It’s more than just a Screw; it’s a promise of an easier install with unmatched strength and the tri-lobe design makes dense boards no challenge, minimizing both effort and any potential for mushrooming and Tri-lobe shank design streamlines driving into even the densest boards