PART NO. THREAD DIMENSIONS E F A B L S1 1TP-04SP R1/4"X19 7/16"X20 14.5 12.7 33 17 1TP-04-06SP R1/4"X19 5/8"X18 14.5 15.7 36 17 1TP-06SP R3/8"X19 5/8"X18 15 15.7 37 19 1TP-06-10SP R3/8"X19 7/8"X14 15 22.4 45.5 24 1TP-08SP R1/2"X14 3/4"X16 20 19 46.5 22 1TP-08-06SP R1/2"X14 5/8"X18 20 15.7 43.5 22 1TP-08-10SP R1/2"X14 7/8"X14 20 22.4 50 24 1TP-08-12SP R1/2"X14 1.1/16"X14 20 25.4 55 30