PART NO. THREAD WELD TUBE O.D DIMENSIONS E D A B S1 1JW9-04IN 7/16"X20 1/4" 24.5 22.5 11 1JW9-06IN 9/16"X18 3/8" 26.9 22.5 14 1JW9-08IN 3/4"X16 1/2" 33 26 19 1JW9-10IN 7/8"X14 5/8" 37.8 31 22 1JW9-12IN 1.1/16"X12 3/4" 44.2 34.5 27 1JW9-16IN 1.5/16"X12 1" 48.8 41 33 1JW9-20IN 1.5/8"X12 1.1/4" 55.3 43 41 1JW9-24IN 1.7/8"X12 1.1/2" 62.5 53 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.