PART NO. THREAD TUBE O.D. DIMENSIONS E F D A B L S1 S2 1QN-12-02 M12X1.5 Z1/8"X27 6 15.7 10.5 32 14 14 1QN-12-04 M12X1.5 Z1/4"X18 6 15.7 15 36.5 14 14 1QN-14-02 M14X1.5 Z1/8"X27 8 17 10.5 33 17 17 1QN-14-04 M14X1.5 Z1/4"X18 8 17 15 38 17 17 1QN-16-04 M16X1.5 Z1/4"X18 10 18 15 39 19 19 1QN-16-06 M16X1.5 Z3/8"X18 10 18 16 40 19 19 1QN-18-04 M18X1.5 Z1/4"X18 12 18 15 39 19 22 1QN-18-06 M18X1.5 Z3/8"X18 12 18 16 40 19 22 1QN-18-08 M18X1.5 Z1/2"X14 12 18 19.5 45.5 24 22 1QN-22-08 M22X1.5 Z1/2"X14 14 19.5 19.5 47 24 27 1QN-27-06 M27X1.5 Z3/8"X18 18 20 16.5 46 30 32 1QN-27-08 M27X1.5 Z1/2"X14 18 20 19 49 30 32 1QN-27-16 M27X1.5 Z1"X11.5 18 20 24 55 36 32 1QN-36-16 M36X2 Z1"X11.5 25 25 25.5 63 41 41 1QN-39-16 M39X2 Z1"X11.5 28 26 25.5 64.5 41 46 1QN-45-16 M45X2 Z1"X11.5 34 28.5 25.5 67 46 50 1QN-45-20 M45X2 Z1.1/4"X11.5 34 28.5 26.5 68 46 50 1QN-45-24 M45X2 Z1.1/2"X11.5 34 28.5 27.5 71 50 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 1QN-18-08RN