ISO 9256:1993
航空航天.强度等级小于或等于1100MPa、有涂层或无涂层、金属材料制成的标准直径或中径柄、长MJ螺纹、大六角头螺栓.尺寸
Aerospace; bolts, large hexagonal head, normal or pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 MPa; dimensions