PART NO. THREAD DIMENSIONS E F A B S1 S2 2JB4-04 7/16"X20 G1/4"X19 21.5 5.5 11 19 2JB4-06 9/16"X18 G3/8"X19 22.8 6.3 14 22 2JB4-08 3/4"X16 G1/2"X14 26.8 7.5 19 27 2JB4-10 7/8"X14 G5/8"X14 31 9.5 22 30 2JB4-12 1.1/16"X12 G3/4"X14 35.5 10.9 27 32 2JB4-16 1.5/16"X12 G1"X11 38.5 11.7 33 41 Nut and sleeve should be ordered separately.The nut NB200 and sleeve NB500 is suitable for metric tube,the nut NB200 and sleeve NB300 is suitable for inch tube.