3a thread class right-hand 1.250" thread length flat chamfer head style 20 thread quantity per inch navy special project passivate surface treated unrf thread series
3a thread class right-hand 1.375" thread length flat chamfer head style 20 thread quantity per inch navy special project passivate surface treated unrf thread series
3a thread class right-hand 1.500" thread length flat chamfer head style 20 thread quantity per inch navy special project passivate surface treated unrf thread series
3a thread class right-hand 1.370" thread length hexagon head style 0.070" hole diameter 24 thread quantity per inch passivate surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style material identification mark on head indented ring with a depth of .010 chromate surface treated
3a thread class right-hand 0.688" thread length hexagon head style 32 thread quantity per inch passivate screw surface treated keyway unf thread series
3a thread class right-hand 1.125" thread length flat chamfer head style 0.044" hole diameter 24 thread quantity per inch cadmium surface treated unrf thread series