McMaster-Carr Supply Company, Inc. engages in the distribution of industrial products. It offers fittings, pipes, tubing and hoses, hand tools, heaters, thermostats, valves, weather instruments, cables and connectors, pumping and filtering equipment, air conditioners, ventilators, lighting and electrical equipment, batteries, transformers, switches, U-bolts, funnels, drum faucets, and waste containers. The company also offers power transmission equipment, conveyors, water quality testers, pressure transducers, communication and office supplies, protective clothing and equipment, and fasteners and sealing, as well as machining, clamping, fabricating, cutting, and sawing equipment. In addition, it offers raw materials, such as wood, glass, ceramics, and graphite. McMaster-Carr Supply Company, Inc. is based in Elmhurst, Illinois with additional offices in Cleveland, Ohio; Los Angeles, California; Princeton, New Jersey; and Atlanta, Georgia.