Profile: Cold Heading Co. is a source of cold-formed fasteners to the automotive industry. Our products include hex flange, hex cap, pan head, studs, wheel bolts, powertrain, suspension, assembly, weld bolts and prototype. We offer plating, heat-treat, lock and seal. Our heat-treat processes include austenitizing, carbon restoration, gas carburizing and tempering. Our plating processes include zinc cobalt, zinc nickel, zinc iron, hexavalent chromate, phosphate coatings, trivalent chromate and tin zinc.