Darling Bolt Co

Cold Heading Company is among the automotive, agricultural and heavy construction, industry leaders in the production of fastener solutions. Since 1912, the Cold Heading Company has been a trusted source for cold-formed fasteners in the automotive industry. From the earliest mass-produced automobiles to the most modern power train, braking, assembly, and safety system applications, the company s brand is a recognized fixture of the manufacturing industry. The company s long lasting relationships have seen it adapt to new demands in the mass production of fasteners, bolts, and nuts. Rather than outsourcing several aspects of producing cold-formed parts it has developed an independent organization of specialties that keep it in control of the entire process. The company serves an international client-base with corporate headquarters located in Warren, Mich.

Founded in 1959, Wyandotte Industries is a family-owned company that designs and manufactures components for construction and agricultural equipment, heavy-duty vehicles, air frame and aircraft parts and diesel engines. It produces heavy-duty inner and outer wheel nuts, slotted nuts and nylon insert locknuts, as well as screw machine products, including bushings, collars, fittings, inserts, knurled parts, machined washers, pins, spacers and vents. Its customers include domestic and foreign original equipment manufacturers and distributors.