Deck screws are essentially specialised wood screws, designed specifically for use in decking projects. They are often coated in a manner that helps them resist corrosion caused by pressure-treated lumber better than standard galvanized screws. These screws have sharper points that make it easier to drill into pressure-treated timber decking. The head design of decking screws is also suitable for accommodating the expansion and contraction of composite decking. A coated screw prevents rust and adds corrosion resistance to the head of a deck screw. When installing composite decking, it is important to use stainless steel screws specifically designed for composite materials, with anti-rust and corrosion-resistant features.
