PART NO. THREAD DIMENSIONS E F B L S1 S2 7BJ-04-05S G1/4"X19 1/2"X20 9.5 29.5 19 17 7BJ-04S G1/4"X19 7/16"X20 9 29 19 17 7BJ-06S G3/8"X19 9/16"X18 10.5 32.5 22 19 7BJ-08-10S G1/2"X14 7/8"X14 13 40 27 27 7BJ-08S G1/2"X14 3/4"X16 11 39.5 27 24 7BJ-12S G3/4"X14 1.1/16"X12 15 42 36 32 7BJ-16S G1"X11 1.5/16"X12 16 47.5 41 41 7BJ-20S G1.1/4"X11 1.5/8"X12 17 51 50 50 7BJ-24S G1.1/2"X11 1.7/8"X12 20 53 55 55