3a thread class right-hand 0.688" thread length hexagon head style 32 thread quantity per inch passivate screw surface treated keyway unf thread series
2a thread class right-hand 0.120" thread length flat countersunk head style 40 thread quantity per inch flat head screw NO4-40 unc-2a passivate screw surface treated unc thread series
3a thread class right-hand 0.355" thread length pan head style 32 thread quantity per inch passivate screw surface treated furnishd with keyway .417 in length thru threads unc thread series
3a thread class right-hand 0.527" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
2a thread class right-hand 0.407" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series