Mechanical coupling links, namely, rivets, nuts; screws, especially thread-forming screws, clipboard screws, wood screws, slot bolts, cross-slotted screws, screws for window construction, raw screws, machine screws, collar screws, outer hexagon cap screws, inner hexagon cap screws, set screws, butterfly screws, self-tapping screws, drilling screws, square-cap screws, screws for gypsum cardboard plates, wall screws, nail screws, wagon screws, iron thread screws, slotted flat-head screws, screwed nuts; mechanical anti-theft devices, namely, locks of metal other than electric, safety deposit boxes, mini-safes; all aforementioned goods made of metal