6 Metal construction elements, metal hardware and metal fasteners for use in the construction industry, namely, anchors, beam clamps, bolts, brackets, bulkhead fittings, channels, clevis, flanges, floor flanges, nuts, pipe hangers, pipe clamps, pipe guides, rollers, saddles, screws, seismic braces, seismic supports, shields, slide plates, straps, struts, threaded rods, and washers, all manufactured of metal