2a thread class right-hand 0.139" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated color clear to light blue tint conversion coating unc thread series
3a thread class right-hand 0.360" thread length hexagon head style 0.046" hole diameter 32 thread quantity per inch aluminum screw surface treated unjf thread series
2a thread class right-hand 1.549" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 18 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.842" thread length flat countersunk head style 24 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.313" thread length pan no. 2 head style 32 thread quantity per inch cadmium screw surface treated internal drive ribbed unjc thread series