Bar hangers and parts and fittings therefor made of metal for electrical fixtures/housing; Common metals, unwrought and semi-worked, for further manufacture; Metal fasteners, namely, bolts, nails, rivets, screws; Metal screws; Metal tool boxes; Scaffolding towers of metal; Screw rings of metal; Tool and tool accessory trays made of metal sold empty and parts and fittings therefor; Tools chests of metal sold empty; Wire rope fittings of metal, namely, sockets, threaded studs, buttons