DeckWise's stainless steel screws are manufactured to be professional grade. Made from high-quality 305 grade stainless steel, they feature an auger tip that easily cuts through the hardest woods and composite decking materials. T15 star drive trim heads provide the best ability to drive screws without stripping, while leaving a minimal head showing on the deck surface. ColorMatch painted heads blend in with your completed dec finish. Choose length and color desired.