ISO 3266:2010规定了一般起重用4级锻钢吊环螺栓的一般特性、性能和与其他部件互换性和兼容性所需的关键尺寸。这些吊环螺栓可用于轴向和倾斜荷载。 ISO 3266:2010规定了吊环螺栓孔的尺寸，允许直接连接与ISO 2415中定义的工作载荷限值相同的卸扣。这些尺寸也允许设计具有更大的孔，允许直接连接具有类似工作负载限制的吊索钩。 ISO 3266:2010涵盖了与4级吊环螺栓相关的所有重大危险、危险情况和事件。 ISO 3266:2010适用于在-20 oC至200 oC温度范围内使用的4级吊环螺栓。 ISO 3266:2010不适用于未整体锻造的吊环螺栓。 ISO 3266:2010不适用于在其作为国际标准发布之日之前制造的4级锻钢吊环螺栓。

ISO 3266:2010 specifies the general characteristics, performance and critical dimensions necessary for interchangeability and compatibility with other components, of forged steel eyebolts grade 4 for general lifting purposes. These eyebolts can be used for axial and inclined loading. ISO 3266:2010 specifies the dimensions of the eyes of eyebolts permitting direct connection with shackles of the same working load limit as those defined in ISO 2415. These dimensions also allow designs with a larger eye which can permit direct connection with sling hooks of similar working load limit. ISO 3266:2010 covers all significant hazards, hazardous situations and events relevant to eyebolts grade 4. ISO 3266:2010 is applicable to eyebolts grade 4 for use in the temperature range of -20 oC to 200 oC. ISO 3266:2010 is not applicable to eyebolts which are not forged in one piece. ISO 3266:2010 is not applicable to forged steel eyebolts grade 4 manufactured before the date of its publication as an International Standard.