3a thread class right-hand 0.381" thread length flat countersunk head style 28 thread quantity per inch passivate screw surface treated 32.0 microinche finish underside of head unf thread series
Used on spec item. 3a thread class right-hand 0.346" thread length double hexagon w/ hole head style 0.047" hole diameter 36 thread quantity per inch unjf thread series
3a thread class right-hand 0.792" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.417" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.208" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand 0.751" thread length spline drive shear head head style 18 thread quantity per inch passivate 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