PART NO. THREAD TUBE O.D. DIMENSIONS E F D A B S1 S2 5QN-12-02 M12X1.5 Z1/8"X27 6 16.7 31.9 14 14 5QN-14-04 M14X1.5 Z1/4"X18 8 17 38.3 19 17 5QN-16-06 M16X1.5 Z3/8"X18 10 18 41 22 19 5QN-18-06 M18X1.5 Z3/8"X18 12 18 40.9 22 22 5QN-22-08 M22X1.5 Z1/2"X14 14 19.5 48.4 30 27 5QN-27-12 M27X1.5 Z3/4"X14 18 20 50.4 36 32 5QN-36-16 M36X2 Z1"X11.5 25 25 61.6 41 41 5QN-42-20 M42X2 Z1.1/4"X11.5 32 28.5 67.4 50 50 Note: In case if you are interested to order the adapter in complete set with sleeve and nut ,it is necessory to inset suffix "RN" in after of part no., for example 5QN-18-06RN.