2a thread class right-hand 0.329" thread length hexagon head style 32 thread quantity per inch includes polytetrafluoroethylene washer cadmium surface treated unf thread series
3a thread class right-hand 0.422" thread length flat countersunk head style 0.178" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.548" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.928" thread length oval countersunk head style 32 thread quantity per inch chromium screw surface treated unc thread series