3a thread class right-hand 0.469" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.250" thread length headless (setscrew) head style 40 thread quantity per inch passivate fastener surface treated unc thread series
2a thread class right-hand 0.188" thread length fillister head style 72 thread quantity per inch navy special project passivate screw surface treated unf thread series
2a thread class right-hand 0.402" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.214" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.472" thread length binding head style 72 thread quantity per inch navy special project passivate screw surface treated unf thread series
2a thread class right-hand 0.140" thread length headless (setscrew) head style 32 thread quantity per inch navy special project drilled hole along centerline 0.136 in. dia by 0.062 in. deep from point end passivate surface treated unf thread series