2a thread class right-hand 0.419" thread length hexagon head style 0.040" hole diameter 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.847" thread length flat countersunk head style 32 thread quantity per inch anodize screw surface treated unc thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 28 thread quantity per inch passivate screw surface treated unf thread series
2a thread class right-hand 1.247" thread length flat countersunk head style 18 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 1.750" thread length pan head style 32 thread quantity per inch navy special project passivate screw surface treated unc thread series
2a thread class right-hand 0.194" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.438" thread length pan no. 2 head style 32 thread quantity per inch navy special project phosphate screw surface treated unc thread series