ENGINEERED FASTENINGS

fastenings of the following nature: screws-wood, drive, machine, [ lock cap, ] washer head, socket head, hardened thread-forming sheet metal, set and drill; bolts of the following nature: stove, [ hanger, ] meter, machine, closet [ ; nuts of the following nature: machine screw (hexagon, square), stove bolt, semi-finished; rods of the following nature: stove, ladder; rivets of the following nature: tubular, special and cold formed special fasteners ]