3a thread class right-hand 0.438" thread length dished hexagon head style 2.240" grip length 23 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.287" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.735" thread length dished hexagon head style 0.070" hole diameter 20 thread quantity per inch cadmium surface treated unjf thread series