标准摘要 Cross Reference: AMS2485,AMS6322,ANSIY14.5,AS7452,ASMEB46.1,ASMEY14.36M,ASTME1444 展开完整摘要 英文名称BOLT, MACHINE - HEXAGON HEAD, PD SHANK, BLACK OXIDE, STEEL UNS G87400, 125 KSI MIN, .2500-28 UNJF-3A