标准摘要 Cross Reference: AMS4967,ANSI Y14.5M,AS7461,ASME B46.1,ASME Y14.36M,ASTME1417 展开完整摘要 英文名称BOLT, MACHINE - DOUBLE HEXAGON EXTENDED WASHER HEAD, DRILLED, CLOSE TOLERANCE SHANK, AMS4967, .4375-20 UNJF-3A