Power Pro® premium wood screws are designed to provide simple solutions for your interior wood projects. These screws are made of zinc and yellow dichromate, with a no-strip star drive, countersinking blades and no split twist shank for a more controlled drive. No pre-drill is required. Packaging also stacks neatly for easy storage and organization. Ideal for decking and any outdoor wood projectBronze ceramic coat with a cross-cut thread and dual flat head exceeds 1,000 hour salt spray test under ASTM B11620% faster engagement into wood75% less wood splitting than standard wood screws15% stronger & 20% faster installation start to finish