3a thread class right-hand 0.395" thread length flat countersunk head style 32 thread quantity per inch chromate zinc screw surface treated unf thread series
2a thread class right-hand 0.250" thread length flat countersunk head style 28 thread quantity per inch phosphate screw surface treated 0.031 in. by 45 to 50 deg chamferat end of shank unf thread series
3a thread class right-hand 1.000" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unf thread series
2a thread class right-hand 0.512" thread length fillister head style 0.037" hole diameter 40 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.250" thread length fillister head style 0.070" hole diameter 40 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.266" thread length flat countersunk head style 40 thread quantity per inch chromate zinc screw surface treated unc thread series
2a thread class right-hand 0.495" thread length fillister head style 0.031" hole diameter 56 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.422" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.312" thread length hexagon head style 0.047" hole diameter 32 thread quantity per inch nickel screw surface treated unc thread series
3a thread class right-hand 0.406" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.332" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.313" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.314" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
