BS ISO 12260-2016 航空航天.强度级小于或等于1100MPa的涂层或未涂层金属材料制阶梯形杆、短长度或中等长度MJ螺纹的内偏移十字形肋状或非肋状驱动的平头螺钉.尺寸
Aerospace. Screws, pan head, internal offset cruciform ribbed or unribbed drive, stepped shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa. Dimensions