ISO 3186:1994
航空航天 强度等级1250 MPa~1800 MPa、有涂层或无涂层、金属材料制成的标准柄、短或中等长度MJ螺纹、大径杆型双六角头螺栓 尺寸
Aerospace - Bolts, large bihexagonal head, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes 1250 MPa to 1800 MPa - Dimensions