2b thread class right-hand 2b thread quantity per inch nut h 0.680 in. nom, 0.340 in. wrenching flat h w/0.623 in. id, six equally spaced holes 0.078 in. dia drilled thru wrenching flat sides 0.120 in. from ends cadmium surface treated
0.314" hole diameter 0.970" outside diameter 0.090" material thickness 0.18 inch radius on both bearing surfaces cadmium surface treated recessed both sides