100% Stainless Steel Boat Canvas Snap Cap, Socket 3/8" Stud Fastener, 50 of Each Piece Brand new 50 piece Stainless Steel set includes 50 Caps, 50 Sockets 50 3/8" Screw Studs. All of the parts are Fasnap Brand 100% Stainless Steel. The will not rust or corrode and are marine grade fasteners designed for salt and fresh water environments. When purchasing snaps be sure to look for the Fasnap Brand or DOT Brand names stamped into the socket. This will assure you are purchasing a quality product. Anything else may corrode, pull apart easily or break. - GENUINE STAINLESS STEEL CAP, SOCKET SCREW STUD - Will Not Rust or Corrode Even in Salt Water Environments - FASNAP BRAND QUALITY - Manufactured from Marine Grade 304 Stainless Steel, Stud is Marine Grade Nickel Brass - ALWAYS LOOK FOR THE MANUFACTURERS NAME STAMPED INSIDE THE SOCKET - This Will Ensure You Are Buying a Quality Product - NEED THE LONGER 1/4" POST ON THE CAP? - Just Let Us Know When You Order and We'll Substitute Them at No Extra Charge - MONEY BACK GUARANTEE IF NOT SATISFIED - Just Send Them Back to Us For a Full Refund, No Questions Asked We Ship Internationally! Northwest Tarp Canvas Take a Look Our Quality Tarps! Have a Nice Day!