Big Bolt

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Headquartered in Bloomingdale, Ill., Big Bolt Corporation has supplied a range of specialty fasteners since 1975. It has a more than 110,000-square-foot manufacturing facility and stocks a large inventory of blanks and finished products. The company s capabilities include cut threading, production milling, slotting, drilling, tapping, roll threading and computerized numerical-control machining. It provides a wide range of products, including hex head cap screws, socket products, rods, coupling and flange nuts, and flange, carriage and plow bolts. In addition, it has a variety of equipment, including camber machines for verifying straightness, optical comparators, Rockwell hardness testers, thread gauges, and other testing and measurement equipment. The company is an ISO 9001:2000-registered facility.