2a thread class right-hand 0.207" thread length flat countersunk undercut head style 24 thread quantity per inch passivate surface treated unc thread series
2a thread class right-hand 0.250" thread length binding head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.120" thread length flat chamfer head style 40 thread quantity per inch threaded neck 0.020-0.030 in. lg; 0.112 in. dia passivate surface treated unc thread series
2a thread class right-hand 0.090" thread length flat chamfer head style 56 thread quantity per inch min shank dia 0.082, max dia 0.088 passivate surface treated unc thread series
2a thread class right-hand 0.141" thread length hexagon head style 32 thread quantity per inch navy special project cadmium surface treated unc thread series