Screw-threaded inserts of metal; nuts; ores, namely, studs, bolts and similar threaded parts for mutual connection of pieces and namely of external threaded elements to be screwed on holders and fitted with a second internal-external thread for lodging of another piece.; Common metals and their alloys; threaded metal inserts for use in aerospace or industrial applications; threaded connector elements; metal building materials; Screws; bolts; threaded fasteners

THREADED INSERTS TO BE CONNECTED INTO A CARRIER PART AND TO WHICH OTHER THREADED ELEMENTS CAN THEN BE ATTACHED