3a thread class right-hand 0.505" thread length flat countersunk head style 24 thread quantity per inch navy special project shank grooved near head to accommodate o ring, furnished with one o ring cadmium surface treated unf thread series
3a thread class right-hand 0.505" thread length flat countersunk head style 24 thread quantity per inch shank grooved near head to accommodate o ring, furnished with one o ring cadmium surface treated unf thread series
2a thread class right-hand 1.250" thread length hexagon head style 0.094" hole diameter 20 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 1.250" thread length hexagon head style 0.094" hole diameter 13 thread quantity per inch zinc surface treated unc thread series
3a thread class right-hand 0.968" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unjc thread series