PART NO. THREAD DIMENSIONS E F A B S1 S2 7NB9-02S Z1/8"X27 G1/8"X28 17.8 5.5 16 14 7NB9-04-02S Z1/4"X18 G1/8"X28 22.5 5.5 19 14 7NB9-04S Z1/4"X18 G1/4"X19 22.5 5.5 19 19 7NB9-04-06S Z1/4"X18 G3/8"X19 22.5 6.3 19 22 7NB9-06S Z3/8"X18 G3/8"X19 27 6.3 24 22 7NB9-06-04S Z3/8"X18 G1/4"X19 27 5.5 24 19 7NB9-06-08S Z3/8"X18 G1/2"X14 27 7.5 24 27 7NB9-08-04S Z1/2"X14 G1/4"X19 31.2 5.5 30 19 7NB9-08-06S Z1/2"X14 G3/8"X19 31.2 6.3 30 22 7NB9-08S Z1/2"X14 G1/2"X14 31.2 7.5 30 27 7NB9-12-06S Z3/4"X14 G3/8"X19 34.5 6.3 33 22 7NB9-12-08S Z3/4"X14 G1/2"X14 34.5 7.5 33 27 7NB9-12S Z3/4"X14 G3/4"X14 34.5 10.9 33 32 7NB9-12-16S Z3/4"X14 G1"X11 34.5 11.7 33 41 7NB9-16S Z1"X11.5 G1"X11 43 11.7 41 41 7NB9-20S Z1.1/4"X11.5 G1.1/4"X11 43.2 11 50 50 7NB9-24S Z1.1/2"X11.5 G1.1/2"X11 52.8 13 63 55