1. The eyebolt must be screwed in to make the support surface tightly connected, but it is not allowed to use tools to tighten it.

2. When using double screw lifting method, the two lifting rings should be in the same plane and the lifting cable angle should not be greater than 90°

3. Choose the correct thread, grade and length of the lifting ring, and check whether it is damaged or deformed. If it is damaged or deformed, replace it immediately.

4. Check whether the working load, thread specification, batch number and manufacturer's mark are clear and legible.

5. For different types of eyebolts, the lifting direction should be designed within the range of its force direction. For example, eyebolts have different standards such as national standard, American standard, non-standard, and different material grades, so make sure it is within its force range.

6. The maximum lifting weight of the eyebolt is the rated load. Do not overload it, otherwise it will cause other serious consequences.

7. Loads perpendicular to the plane of the lifting ring are not allowed.

Shackle screw