YOU ARE BIDDING ON A PAIR OF STAINLESS STEEL REPLACEMENT ,DELLORTO FLOAT BOWL NUTS TO SUIT A VARIETY OF ITALIAN BIKES FROM THE SEVENTIES. PLEASE NOTE THESE HAVE AN INTERNAL THREAD DIAMETER OF 14MM. REPLACE THE ORIGINAL SOFT ALUMINIUM NUTS WITH THESE HIGH QUALITY EASY CLEAN ITEMS.THESE ARE GENERALLY SUITABLE FOR THE SQUARE SLIDE VHB TYPE DELLORTO CARBS AND SOME PHF DELLORTO CARBS, USING THE 14MM MAIN JET HOLDER, SUCH AS  MOTO GUZZI T3,SPADA,V50,V7 SPORT, MORINI, MV,ETC BUT PLEASE CHECK THREAD DIAMETER FIRST.