3a thread class right-hand 0.514" thread length hexagon head style 2.985" grip length 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.500" thread length hexagon head style 0.047" hole diameter 24 thread quantity per inch tin surface treated unc thread series
2a thread class right-hand 0.150" thread length fillister head style 0.031" hole diameter 40 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.756" thread length flat countersunk head style 1.552" grip length 20 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.755" thread length flat countersunk head style 1.678" grip length 20 thread quantity per inch cadmium surface treated unf thread series