The nuts and bolts of MacLean-Fogg's business are nuts, bolts, and other engineered parts. The family-owned company provides engineered metal and plastic components to the industrial, automotive, military, and aerospace markets, and unique devices used in the transmission and distribution of electrical power. Its MacLean Component Solutions unit offers an array of fasteners and components used by auto, railroad, agricultural, and construction industries. The company's operations include extruding, forging, grinding, and machining. MacLean Power Systems sells silicone rubber insulators, automatic connectors, and other hardware to electric utility and communications customers worldwide.