标准摘要
Cross Reference: AMS2645K,AMS5643,AMS7474C,ANSI/ASME/B 46.1,ANSI/Y 14.5,AS3062,AS478J,AS870,MIL-S-8879
英文名称BOLT, MACHINE - DOUBLE HEX EXTENDED WASHER HEAD, CLOSE TOLERANCE SHANK, AMS5643 (UNS S17400), .4375-20, UNJF-3A