PART NO. THREAD TUBE O.D. DIMENSIONS E F D A C S1 S2 S3 2Q9-14 M14X1.5 M14X1.5 8 30.2 8.5 14 19 17 2Q9-16 M16X1.5 M16X1.5 10 32.5 8 16 22 19 2Q9-18 M18X1.5 M18X1.5 12 34 8 19 24 22 2Q9-22 M22X1.5 M22X1.5 14 37.5 10 22 27 27 2Q9-27 M27X1.5 M27X1.5 18 41.5 10 27 32 32 2Q9-30 M30X1.5 M30X1.5 20 45.8 11 30 36 36 2Q9-33 M33X2 M33X2 22 49.5 13 33 41 41 2Q9-36 M36X2 M36X2 25 51.5 13 36 41 41 2Q9-39 M39X2 M39X2 28 55.5 13 41 46 46 2Q9-45 M45X2 M45X2 34 62.5 15 48 55 50 Note :In case if you are interested to order the adapter in complete set with sleeve and nut ,it is necessary to insert suffix "RN" after our part no.,for example 2Q9-18RN