标准摘要 Cross Reference: AMS2645,AMS2645K,AMS5731,AMS5732,AMS5734,AMS5737,ANSI/ASME/B46.1,ANSI/B4.2,ANSI/Y14.36,ANSI/Y14.5M,AS1370,AS478,AS478J,MA1937,UNS/S66286 展开完整摘要 英文名称NUT, PLAIN HEX – UNS S66286, MJ THREAD, METRIC