2a thread class right-hand 0.938" thread length flat chamfer head style 18 thread quantity per inch six wrenching flats 0.309 in. across the flats 0.250 in. long beginning after shoulder unc thread series
3a thread class right-hand 0.355" thread length knurled no. 1 head style 24 thread quantity per inch locking element in threads cadmium surface treated unc thread series
2a thread class right-hand 0.156" thread length fillister head style 40 thread quantity per inch shoulder surface finish 16 microinches rms unc thread series
2a thread class right-hand 0.219" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.157" thread length flat chamfer head style 32 thread quantity per inch thread relief 0.031" long by 0.050" deep unf thread series
2a thread class right-hand 0.250" thread length hexagon head style 32 thread quantity per inch undercut at base of shoulder 1/16 in. w, by 0.020 in. deep chromate zinc surface treated unc thread series
2a thread class right-hand 0.250" thread length hexagon head style 32 thread quantity per inch thd relieved groove passivate surface treated unc thread series
3a thread class right-hand 0.574" thread length flat countersunk head style 20 thread quantity per inch navy special project cadmium surface treated unjf thread series
2a thread class right-hand 0.203" thread length flat chamfer head style 24 thread quantity per inch 0.062 in. undercut to root dia between end of shoulder passivate surface treated unc thread series
2a thread class right-hand 0.250" thread length flat chamfer head style 40 thread quantity per inch thds 1/64 in. off center passivate surface treated unf thread series
