GRK Fasteners Kameleon 67158 Deck Screw, #9 Thread, 2-1/2 in L, Coarse Thread, Flat Head, Star Drive, Type 17 Point, 100/PK

Heads blend in with decking with no mushrooming effect. Use in plastic or composite decking. They come in a variety of deck matching colors of which gray, brown and tan are approved for use with Trex Selectâ„¢ deck boards. GRK's Kameleonâ„¢ screws are an excellent choice for composite and PVC decking applications. The underhead has saw-blade like cutting teeth that cut a perfectly clean hole into the decking. The Kameleonâ„¢ also features five to seven rings that have three indented fiber traps on each ring designed to trap fibers and eliminate the mushroom effect. The Kameleon screws are self-tapping featuring fiber trapping rings, a countersinking head with cutting teeth, CEE Threadâ„¢, W-Cutâ„¢ threads for reduced torque and our Climatekâ„¢ AC257 code approved coating. They are ESR code approved under ICC Report ESR-3201. The CEE thread feature enlarges the screw hole allowing the composite decking to settle easily, increases the screw's drawing strength and reduces the friction on the screw shank, which can result in lowering the overall driving torque. Features: - Recessed star drive, zero stripping, with six points of contact - CEE thread, enlarges hole to reduce splitting, install torque - W-Cut™, low torque, smoother drive, reduce splitting - Zip-Tip™, no pre-drilling, faster penetration and reduce splitting - Cutting pockets provide a clean hole, reduces splitting and bore with precision - Case hardened steel for high-tensile, torque and shear strength - Climatek™ coating is AC257 code approved for use in treated lumber - For interior or exterior use in both composite and PVC decking