3a thread class right-hand 0.469" thread length flat countersunk head style 28 thread quantity per inch land surface also cadmium plated unf thread series
3a thread class right-hand 0.375" thread length flat countersunk head style 24 thread quantity per inch cadmium threads surface treated unf thread series
3a thread class right-hand 0.174" thread length flat chamfer head style 40 thread quantity per inch cadmium screw surface treated cadmium plating 0.00015 in. max thk unc thread series
3a thread class right-hand 0.172" thread length flat chamfer head style 40 thread quantity per inch cadmium screw surface treated cadmium plating modified by 0.00015 in. thk unc thread series
3a thread class right-hand 0.328" thread length flat countersunk head style 28 thread quantity per inch cadmium threads surface treated unf thread series
3a thread class right-hand 0.328" thread length flat countersunk head style 28 thread quantity per inch navy special project cadmium threads surface treated unf thread series
3a thread class right-hand 0.500" thread length fillister head style 0.047" hole diameter 32 thread quantity per inch passivate screw surface treated unf thread series
