3a thread class right-hand 0.718" thread length flat countersunk head style 20 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.938" thread length flat chamfer head style 0.031" hole diameter 48 thread quantity per inch navy special project cadmium surface treated unf thread series
2a thread class right-hand 0.375" thread length pan no. 2 head style 20 thread quantity per inch cadmium or zinc screw surface treated unc thread series
3a thread class right-hand 0.450" thread length flat chamfer head style 0.033" hole diameter 40 thread quantity per inch passivate surface treated unrc thread series
3a thread class right-hand 0.545" thread length flat chamfer head style 0.036" hole diameter 40 thread quantity per inch passivate surface treated unrf thread series
3a thread class right-hand 0.875" thread length flat chamfer head style 0.044" hole diameter 36 thread quantity per inch passivate surface treated unrf thread series
3a thread class right-hand 0.562" thread length hexagon head style 24 thread quantity per inch navy special project passivate surface treated unf thread series