PART NO. THREAD DIMENSIONS E F A B L S1 1BP-04 G1/4"X19 7/16"x20 12 12.7 31 19 1BP-04-06 G1/4"X19 5/8"x18 12 15.7 34 19 1BP-06 G3/8"X19 5/8"x18 13.5 15.7 37 22 1BP-06-10 G3/8"X19 7/8"x14 13.5 22.4 44 24 1BP-08 G1/2"X14 3/4"x16 16 19 45 27 1BP-10 G5/8"X14 7/8"x14 17.5 22.4 50 30