PART NO. THREAD DIMENSIONS E F A B S1 5TB9-02SP R1/8"X28 G1/8"X28 24.5 20 16 5TB9-04SP R1/4"X19 G1/4"X19 28.5 22 19 5TB9-06SP R3/8"X19 G3/8"X19 33.5 26 24 5TB9-08SP R1/2"X14 G1/2"X14 40.5 31 30 5TB9-12SP R3/4"X14 G3/4"X14 47.5 37 33 5TB9-16SP R1"X11 G1"X11 56.5 43 41