PART NO. THREAD DIMENSIONS E F G,H A,B,C,D S1 ZB-02 G1/8"X28 20 16 ZB-04 G1/4"X19 22.5 19 ZB-06 G3/8"X19 26 24 ZB-08 G1/2"X14 32 30 ZB-12 G3/4"X14 34 33 ZB-16 G1"X11 42 41 ZB-20 G1.1/4"X11 48 50 ZB-24 G1.1/2"X11 53 60 ZB-32 G2"X11 62 70