With its color-matched look, easy installation, and strength, TOPLoc® fastening system delivers everything you need to keep TimberTech® deck boards in place and perfectly secure. Compatible with TimberTech Composite boards. Included: 350x 2-1/2" carbon steel screws Designed to maintain a lasting hold on TimberTech’s dense boards Designed for an 18v drill set for maximum performance, with a T20 drive to increase engagement with screw head. Color-matched fastening blends beautifully and preserves your deck’s design Pre-drilling is required when within 1-1/2”of the ends of the plank and in temperatures below 45 degrees Fahrenheit to avoid splitting and screw shear.Compatible Decking Colors: Gray: Gray, Maritime Gray™, Driftwood, Weathered OakTeak: Dark Teak, Pecan, Tigerwood, Antique Leather®, Coconut Husk™Light Gray: Stone Ash®, Sea Salt GrayWalnut: Brown Oak, Rustic Elm®, Mocha, Dark Roast®, Dark Cocoa, Dark OakDark Gray: Silver Maple, Ashwood, Espresso™Sand: Sandy Birch, Cedar Reliaboard Deck, Natural White Oak, Reclaimed Chestnut™Ivory: Whitewash Cedar®