PART NO. THREAD COPPER WASHER DIMENSIONS E F F A B C S1 5JB9-04G 7/16"X20 G1/4"X19 DP-B04G 29.5 22 11 19 5JB9-04-08G 7/16"X20 G1/2"X14 DP-B08G 36 31 17 30 5JB9-05-04G 1/2"X20 G1/4"X19 DP-B04G 29.5 22 11 19 5JB9-05-08G 1/2"X20 G1/2"X14 DP-B08G 36 31 17 30 5JB9-06-04G 9/16"X18 G1/4"X19 DP-B04G 30 22 11 19 5JB9-06-08G 9/16"X18 G1/2"X14 SP-B08G 36.5 31 17 30 5JB9-08G 3/4"X16 G1/2"X14 DP-B08G 39.5 31 17 30 5JB9-08-04G 3/4"X16 G1/4"X19 DP-B04G 36 22 11 24 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.