3a thread class right-hand 0.465" thread length round w/wrench flats chamfered head style 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.526" thread length double hexagon w/hole head style 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.441" thread length spline drive shear head head style 24 thread quantity per inch passivate surface treated unjf thread series