2a thread class right-hand 0.871" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.839" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjc thread series
3a thread class right-hand 0.667" thread length flat countersunk head style 28 thread quantity per inch passivate screw surface treated unjf thread series
3a thread class right-hand 0.633" thread length hexagon head style 0.047" grip length 24 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.500" thread length pan head style 32 thread quantity per inch navy special project zinc screw surface treated unc thread series
3a thread class right-hand 0.416" thread length hexagon head style 5.927" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.188" grip length 95000 single pounds per square inch shear strength one 0.076 in. dia thru hole in shank, 1.450 in. from hd bearing surface cadmium surface treated unjf thread series