2a thread class right-hand 0.219" thread length hexagon head style 20 thread quantity per inch navy special project passivate surface treated unf thread series
2a thread class right-hand 0.140" thread length flat countersunk head style 32 thread quantity per inch navy special project oxide screw surface treated unc thread series
2a thread class right-hand 0.813" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unf thread series
2a thread class right-hand 0.250" thread length flat countersunk head style 48 thread quantity per inch navy special project oxide surface treated unf thread series
3a thread class right-hand 0.364" thread length flat countersunk head style 0.428" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.408" thread length flat chamfer head style 0.044" hole diameter 32 thread quantity per inch passivate surface treated unrc thread series
3a thread class right-hand 1.433" thread length dished hexagon head style 1.990" grip length 12 thread quantity per inch cadmium surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.251" grip length anodize body or chromate body surface treated
3a thread class right-hand 0.378" thread length flat countersunk head style 0.177" grip length 28 thread quantity per inch cadmium surface treated unjf thread series