摘要:
Device for connecting frame elements (15A, 15B, 19A, 19B) able to obtain frameworks (30, 30') for panelwork, furniture, fixtures, doors, windows or suchlike, comprising: at least one pin (11) provided with a right-handed thread (D) and a left-handed thread (S) self-threading and positioned specular to a plane (V) of symmetry; and at least one polygonal tightening seating (12, 12A, 12B) recessed in at least one of the two ends the pin (11) free of said right-handed thread (D) and said left-handed thread (S).