Fasnap Stainless Steel Snap Set 500 of each Piece - Cap Socket Only Snaps are Standard Size Line 24, Cap is 5/8" across the top with a 3/16" Post When purchasing snaps be sure to look for the Fasnap Brand or DOT Brand name stamped into the socket. This will assure you are purchasing a quality product. Anything else may corrode, pull apart easily or break. These Snaps are the Female portion of the Snap Assembly Only. Top Quality Stainless Steel Snap Fasteners, Marine Grade. Heavy-duty construction assures a firm grip that will remain secure through years of use All Stainless Parts, superior snap action and holding strength We Ship Internationally! Northwest Tarp Canvas Mount Vernon, Washington Take a Look Our Quality Tarps! Have a Nice Day!