2a thread class right-hand 6.000" overall length 16 thread quantity per inch slot 0.080 in. w by 0.100 in. deep located at tip of stud approx 1.600 in. distance from center of cotter pin hole cadmium surface treated unc thread series
3a thread class right-hand 1.000" overall length 28 thread quantity per inch navy special project one keyway 0.062 in. min, 0.067 in.max, w, 0.048 in. min, 0.049 in. max, deep passivate surface treated unf thread series