PART NO. THREAD DIMENSIONS E F G A B C S1 KJTJ-04 7/16"X20 Rc1/4"X18 7/16"X20 30.9 25 30.9 19 KJTJ-06 9/16"X18 Rc3/8"X18 9/16"X18 33.2 27 33.2 22 KJTJ-08 3/4"X16 Rc1/2"X14 3/4"X16 38 31.5 38 27 KJTJ-12 1.1/16"X12 Rc3/4"X14 1.1/16"X12 48 35 48 33 KJTJ-16 1.5/16"X12 Rc1"X11.5 1.5/16"X12 55.1 40.5 55.1 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.