3a thread class right-hand 0.298" thread length flat countersunk head style 0.678" grip length 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.547" thread length flat chamfer head style 0.043" hole diameter 32 thread quantity per inch passivate surface treated unjc thread series
2a thread class right-hand 0.345" thread length flat countersunk head style 32 thread quantity per inch color no. 26555 per fed std 595 unc thread series
3a thread class right-hand 0.615" thread length flat countersunk head style 24 thread quantity per inch supply with o ring per ST7M251 unjf thread series
2a thread class right-hand 0.157" thread length flat countersunk head style 32 thread quantity per inch color no. 26555 per fed std 595 unc thread series
2a thread class right-hand 0.256" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unc thread series