PART NO. THREAD DIMENSIONS E F G A B C S1 AJJT-04-04-02SP 7/16"X20 7/16"X20 R1/8"X28 24.5 24.5 21 11 AJJT-04SP 7/16"X20 7/16"X20 R1/4"X19 26.6 26.6 25.5 14 AJJT-06-06-04SP 9/16"X18 9/16"X18 R1/4"X19 26.9 26.9 25.5 14 AJJT-06SP 9/16"X18 9/16"X18 R3/8"X19 28.5 28.5 28.5 16 AJJT-08-08-06SP 3/4"X16 3/4"X16 R3/8"X19 32 32 30.5 19 AJJT-08SP 3/4"X16 3/4"X16 R1/2"X14 34.8 34.8 36 22 AJJT-10-10-08SP 7/8"X14 7/8"X14 R1/2"X14 37.8 37.8 36 22 AJJT-12SP 1.1/16"X12 1.1/16"X12 R3/4"X14 44.2 44.2 43.5 27 AJJT-16SP 1.5/16"X12 1.5/16"X12 R1"X11 49 49 50 33 AJJT-20SP 1.5/8"X12 1.5/8"X12 R1.1/4"X11 55.5 55.5 56.5 41 AJJT-24SP 1.7/8"X12 1.7/8"X12 R1.1/2"X11 62.5 62.5 62.5 48 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.