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mechanical fasteners in metric measurements and tolerances, namely bolts, carriage bolts, screws, machine screws, set screws, nuts, washers, pins, studs, threaded inserts, pipe plugs, hexagon keys, lifting eye nuts and bolts, turnbuckles, keys, standoffs and spacers made from the following materials-steel, alloy steel, stainless steel, copper, brass, and aluminum

mechanical fasteners in metric measurements and tolerances, namely screws, nuts, machine screws, washers, sealing rings, standoffs, spacers, and set screws, made from the following materials - nylon and plastics