3a thread class right-hand 0.188" thread length round with wrench flats head style 56 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.531" thread length flat countersunk undercut head style 24 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.525" thread length flat countersunk head style 20 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.563" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 1.438" thread length flat countersunk head style 20 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.314" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand 0.314" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjc thread series
2a thread class right-hand 0.548" thread length oval countersunk head style 32 thread quantity per inch chromium screw surface treated unf thread series
2a thread class right-hand 0.673" thread length oval countersunk head style 32 thread quantity per inch chromium screw surface treated unf thread series