Brand new 25 piece set 3/8" 100% Stainless Steel Screw Stud with #2 Philipps Head Screw The screw studs are manufactured by Fasnap Corporation. Unlike other screw studs these are 100% stainless steel. They are designed for Marine salt water environments and work well for fresh water environment as well. These screw studs will not rust or corrode and you you can expect them to last for years to come.. Questions? Drop us an e-mail here on Amazon. We respond to all e-mails within 24 hours and often much sooner.