3a thread class right-hand 0.224" thread length flat chamfer head style 56 thread quantity per inch passivate screw surface treated thd relief groove 0.031 in. wide by 0.067 in. min to 0.072 in. max dia unf thread series
2a thread class right-hand 0.938" thread length double chamfer head style 32 thread quantity per inch passivate screw surface treated knurled head unc thread series
3a thread class right-hand 0.655" thread length flat chamfer head style 20 thread quantity per inch 0.045 in.wide, 0.065 in. deep circular groove on head unc thread series
3a thread class right-hand 0.224" thread length flat chamfer head style 56 thread quantity per inch passivate screw surface treated thd relieved groove, 0.031 in. wide by 0.067 in. min, 0.072 in. max dia; head offset from centerline of longitudinal axis 0.013 in. min, 0.015 in. max unf thread series
2a thread class right-hand 0.562" thread length fillister head style 32 thread quantity per inch zinc or phosphate or enamel screw surface treated gray enamel unc thread series
2a thread class right-hand 0.625" thread length flat chamfer head style 18 thread quantity per inch cadmium or zinc screw surface treated unc thread series
3a thread class right-hand 0.423" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium screw surface treated unjf thread series
2a thread class right-hand 1.500" thread length fillister head style 0.046" hole diameter 24 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.152" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.538" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.376" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
