2a thread class right-hand 0.879" thread length flat countersunk head style 32 thread quantity per inch navy special project passivate screw surface treated unf thread series
3a thread class right-hand 0.487" thread length pan head style 32 thread quantity per inch passivate screw surface treated two keyways longitudinally opposite each other, keyway length 0.607 unf thread series
2a thread class right-hand 0.100" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated locking strip color blue unc thread series
