As a standard fastener, eye lifting screws are made of Grade 20 or Grade 25 steel. They are widely used in electromechanical products, mainly for lifting loads. Eye lifting screws must be fully forged. The forgings shall be subjected to normalizing treatment and descaled. The grain size of finished products shall not be lower than Grade 5, and the forgings shall be free from overheating and crack defects. Eye lifting screws generally do not undergo surface treatment, but galvanizing passivation, chrome plating and other surface treatments can be carried out according to application requirements.

Detailed provisions are made for the structure, dimensions, technical requirements, lifting capacity and service conditions of eye lifting screws. Therefore, except for standard fastener manufacturers, other manufacturers mainly select and apply them. The principles for selecting eye lifting screws are: first ensure operational safety, then take into account factors such as connection dimensions to achieve safety, economy and aesthetics. To select and use eye lifting screws correctly, it is necessary to conduct an in-depth analysis of their stress conditions, carefully study the contents specified in the standards and strive for a thorough understanding.