PART NO. THREAD DIMENSIONS E F A B S1 S2 2TJ4-04SP R1/4"x19 7/16"x20 21 9 14 15 2TJ4-04-06SP R1/4"x19 9/16"x18 21 10.5 14 19 2TJ4-06SP R3/8"x19 9/16"x18 23 10.5 16 19 2TJ4-08SP R1/2"x14 3/4"x16 29.5 11 22 24 2TJ4-08-10SP R1/2"x14 7/8"x14 29.5 13 22 27 2TJ4-12SP R3/4"x14 1.1/16"x12 30.5 15 27 32