3a thread class right-hand 0.273" thread length flat countersunk head style 40 thread quantity per inch expander nut material ams 5628; silver plate nut per ams 2410, 0.0003 in. thick on all signifigant surfaces unjc thread series
3a thread class right-hand flat countersunk head style 40 thread quantity per inch expander nut material ams 5628; silver plate nut per ams 2410, 0.0003 in. thick on all signifigant surfaces unjc thread series
3a thread class right-hand 0.355" thread length hexagon head style 32 thread quantity per inch 0.250-28unf-2a threads on shoulder; threaded hex sleeve 0.312 in. across flats passivate surface treated unf thread series
