ISO 888:2012规定了适用于适当产品标准和其他相关文件的螺栓、螺钉和螺柱的长度和螺纹长度，如图纸所示的零件。 根据ISO 68-1，它适用于具有ISO公制螺纹的螺栓、螺钉和螺柱。

ISO 888:2012 specifies lengths and thread lengths for bolts, screws and studs for use in appropriate product standards and other relevant documents, e.g. for parts per drawing. It applies to bolts, screws and studs with ISO metric screw thread according to ISO 68-1.