Deck Screws, 18-8 Stainless Steel, Square Drive, Bugle Head, Type 17 Wood Cutting Point
Decking screws are designed for use in hard and softwood decking boards. They are very similar to wood screws except that they are much longer and have a sharper tip.
Similar to a drywall screw except that it has improved corrosion resistance and is generally supplied in a larger gauge. Most deck screws have a type-17 (auger type) thread cutting tip for installation into decking materials. They have bugle heads that allow the screw to depress the wood surface without breaking it.