6 Small items of metal hardware, namely gripping trays, door hinges, window hinges, mounting plates; goods of common metal not included in other classes, namely, square holding tubes, handrails, handrails of stainless steel for clamp mountings, structural tubes, shackles for lifting and rigging, universal joints in the nature of cardan joints being structural joint connectors of metal, not for land vehicles, fork joints being structural joint connectors of metal, not for land vehicles, pipe clamp connectors, clamp holders; nuts, bolts and fasteners, of metal, namely, bolts, nails, rivets, screws, shoulder screws, swing bolts, plungers, indexing plungers, spring plungers, ball lock pins, spring cotter pins, locking pins, shaft collars; control, operating and clamping elements of metal, namely, operating door handles, door handles, crank door handles, hand wheels in the nature of metal wheel clamps, clamping levers in the nature of mechanical fastening elements of metal, palm grips in the nature of palm grip knobs and star door handles, knobs, screws, nuts, headless screws and door bolts; knobs of metal; bolts of metal, springs of metal; door bolts of metal; metal hinges; metal hardware, namely, levelling machine feet of metal, not being parts for machines; metal hinges, namely, hinged feet of metal; ventilation and airing caps of metal; metal clips for general use; collars of metal for fastening pipes; covering caps for closures of metal; metal balls for bearings; standard elements for metal profile systems, namely, telescopic rails, roller guides in the nature of metal braces for the movement of transported goods, roller rails, ball rails