Aluminum alloys; Cantilevered brackets of metal; Metal beam clamps; Metal bed fittings; Metal brackets for use in the construction and assembly of decking; Metal casters; Metal door bolts; Metal hardware, namely, nuts; Metal hardware, namely, springs; Metal pontoons and structural supports therefor, used to support decking; Metal threaded fasteners; Metal trestles for use as table supports; Scaffolding of metal; Scaffolding towers of metal; Stainless steels