PART NO. THREAD DIMENSIONS E F A B S1 S2 2BJ4-04 G1/4"X19 7/16"X20 20.3 9 14 15 2BJ4-06 G3/8"X19 9/16"X18 22 10.5 16 19 2BJ4-08 G1/2"X14 3/4"X16 27 11 22 24 2BJ4-10 G5/8"X14 7/8"X14 28.5 13 22 27 2BJ4-12 G3/4"X14 1.1/16"X12 31 15 27 32 2BJ4-16 G1"X11 1.5/16"X12 35 16 33 41