Dent Fix Equipment DTF-DF26 2.6 Mm Stud Welding Pins, 1000 Per Box Theseare the original pins that come with the Spitznagel Stud Welder. Soft and flexible, all of our pins are steel core for pulling strength and copper coated for conductivity and corrosion resistance. The heads of these pins are pointed and conically shaped, a design that offers better adhesion to the metal. Each pin is rated up to 600 lbs. Imported from Germany.