标准摘要 Cross Reference: AMS2645,AMS5731,AMS7477,ANSI/Y14.5,AS478,ASME B46.1,MIL-S-8879 展开完整摘要 英文名称BOLT, MACHINE - HEXAGON HEAD, DRILLED 1 HOLE, PD SHANK, CRES AMS5731 (UNS S66286), .3125-24 UNJF-3A