Used on e-3 block 404. 3b thread class right-hand 24 thread quantity per inch nut, self-locking gang channel, floating, low height, steel, 125ksi ftu, 250 degrees f nut element spacing is 2.0 with 36 number of nut elements cadmium nut surface treated
Used on e-3 block 404. 3b thread class right-hand 32 thread quantity per inch nut, self-locking gang channel the nuts are spaced out 0.625" apart cadmium nut surface treated