Camo exterior fasteners are designed specifically for exterior projects. Each screw starts fast, holds strong, and is backed by a Camo warranty against rust and corrosion so you can confidently use them in all of your decking projects, substructures, landscaping, fences, pole barns and more.0.160 in (4.06 mm) structural framing screw for wood-to-wood connections, deck blocking, and other interior and exterior projectsReplaces 8d, 10d, and 16d nails in interior and exterior applicationsType 17 slash point removes material as it's driven, reducing friction and drive time with no pre-drillingLarge flat head maximizes pull-through holding power and finishes flush with work areaT-25 star drive reduces cam outs and excessive wear on bitCoated with our proprietary PROTECH Ultra 4 coating system, which features four layers that combine to provide the ultimate corrosion protection