PART NO. THREAD TUBE O.D. DIMENSIONS E F D A B S1 S2 1QN9-12-02 M12X1.5 Z1/8"X27 6 25.5 21 11 14 1QN9-12-04 M12X1.5 Z1/4"X18 6 28 25.5 14 14 1QN9-14-04 M14X1.5 Z1/4"X18 8 30.2 25.5 14 17 1QN9-16-04 M16X1.5 Z1/4"X18 10 32 26.5 16 19 1QN9-16-06 M16X1.5 Z3/8"X18 10 34 31 19 19 1QN9-16-08 M16X1.5 Z1/2"X14 10 36 36.7 22 19 1QN9-18-04 M18X1.5 Z1/4"X18 12 34 28.7 19 22 1QN9-18-06 M18X1.5 Z3/8"X18 12 34 31 19 22 1QN9-22-06 M22X1.5 Z3/8"X18 14 37.5 32.5 22 27 1QN9-22-08 M22X1.5 Z1/2"X14 14 37.5 36.7 22 27 1QN9-27-08 M27X1.5 Z1/2"X14 18 41.5 40 27 32 1QN9-27-12 M27X1.5 Z3/4"X14 18 41.5 44 27 32 1QN9-27-16 M27X1.5 Z1"X11.5 18 46.5 50 36 32 1QN9-36-16 M36X2 Z1"X11.5 25 51.5 51.5 36 41 1QN9-39-16 M39X2 Z1"X11.5 28 55.5 54.5 41 46 1QN9-42-20 M42X2 Z1.1/4"X11.5 32 57 60 41 50 1QN9-45-16 M45X2 Z1"X11.5 34 62.5 58.5 48 50 1QN9-45-20 M45X2 Z1.1/4"X11.5 34 62.5 58.5 48 50 1QN9-45-24 M45X2 Z1.1/2"X11.5 34 62.5 63 48 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 1QN9-18-06RN