3a thread class right-hand 0.506" thread length flat countersunk head style 24 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.562" thread length 24 thread quantity per inch round head 0.750 in. dia; used ONM39 gun barrel stabilizer unf thread series
3a thread class right-hand 0.500" thread length pan no. 2 head style 28 thread quantity per inch design analysis; nuclear hardness critical unf thread series
2a thread class right-hand 0.470" thread length flat chamfer head style 16 thread quantity per inch 1st shoulder dia machined to 16 microinch finish, all other surfaces 125 unc thread series
2a thread class right-hand 0.230" thread length flat chamfer head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.375" 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 0.203" thread length fillister head style 28 thread quantity per inch 0.047 in. w by 0.203 in. dia undercut between shoulder phosphate surface treated unf thread series
2a thread class right-hand 1.150" thread length round head style 28 thread quantity per inch 0.206 in. dia by 1/16 in. thd relief cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.248" thread length flat chamfer head style 40 thread quantity per inch third shoulder dia 0.265 in. min chromium surface treated unc thread series
2a thread class right-hand 0.313" thread length flat chamfer head style 24 thread quantity per inch thd relieved groove 0.062 in.w by 0.190 in.dia passivate surface treated unc thread series
2a thread class right-hand 0.245" thread length hexagon head style 36 thread quantity per inch thd relieved groove cadmium surface treated unf thread series
3a thread class right-hand 0.381" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium surface treated unjf thread series
2a thread class right-hand 0.312" thread length hexagon head style 32 thread quantity per inch navy special project thd portion next to shoulder is undercut 3/64 in. w by 0.020 in. to 0.025 in. deep passivate surface treated unc thread series
