18-8 stainless steel screws have good chemical resistance.

Because these steel screws cut threads into drilled holes as they’re turned, they require less driving torque and cause less stress on material than thread-forming screws. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting boards.

18-8 stainless steel screws have good chemical resistance.

Also known as deck screws, these Phillips screws have a sharp point and narrow body to penetrate softwood and plastic-wood composite decking material.

Screws are beveled under the head for use in countersunk holes.

More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water.