316 MARINE GRADE STAINLESS STEELSOLID STAINLESS STEEL: These machine screws are made of 316 Stainless Steel which is one of the highest forms of corrosion resistant metals, making it last longer than other hardware on the market today. It is great for marine applications!
CORROSION AND RUST RESISTANT: Our Machine Screws are very strong and are great for both indoor and outdoor use. This stainless is superior to regular steel and provides excellent corrosion and rust resistance.