标准摘要 Cross Reference: AMS2645,AMS2645K,AMS5662,ANSI/ASME/B46.1,ANSI/B4.2,ANSI/Y14.36,ANSI/Y14.5M,AS478,AS478J,MA3377 展开完整摘要 英文名称BOLT, MACHINE-HEX HEAD, DRILLED, PD SHANK, LONG THREAD, NICKEL ALLOY UNS N07718, METRIC