3b thread class right-hand 18 thread quantity per inch 2 each drilled lockwire holes in hex 180 degrees apart, 0.070 in. dia holes, 0.046 in. c to c of holes cadmium surface treated
3b thread class right-hand 14 thread quantity per inch 2 each drilled lockwire holes in hex 180 degrees apart, 0.070 in. dia holes, 1.062 in. c to c of holes