In various industrial facilities, construction sites, and ports, we often see bolts used for lifting, with slings or wire ropes attached to their eye-shaped heads. These seemingly inconspicuous parts are called Eye Bolts, also known as Lifting Eye Bolts or Eyebolts. They play a crucial role in lifting and hoisting operations. So, what exactly are Eye Bolts? What types are there? And what are they used for? This article will explore these questions in depth.

Definition and Composition of Eye Bolts

An Eye Bolt is a bolt with an eye-shaped head, consisting of a threaded shank and an eye. The threaded shank is used to connect to the equipment or structural component being lifted, while the eye is used to connect to the lifting sling. Eye Bolts can be permanently assembled on the equipment or temporarily installed in pre-threaded holes.

Types of Eye Bolts

According to the connection method between the eye and the threaded shank, Eye Bolts can be divided into two types: shoulder type and regular type.

Shoulder Type Eye Bolt: There is a plain shank between the threaded shank and the eye, which serves for positioning and support. It is suitable for connecting parts with a certain thickness.

Regular Type Eye Bolt: The eye is directly connected to the threaded shank. It is suitable for thin connecting parts or situations where positional accuracy is not highly required.

According to the surface treatment process, Eye Bolts can be divided into Hot-Dip Galvanized (H.D.G.) and Self-Colour (S.C.). Hot-dip galvanizing can significantly improve the corrosion resistance of Eye Bolts and extend their service life.

Applications of Eye Bolts

Eye Bolts are widely used in industrial, construction, shipping, stage, and other fields. They are commonly found in the following situations:

• Installation, handling, and maintenance of industrial equipment

• Formwork and scaffold erection on construction sites

• Container lifting in ports and docks

• Suspension of stage lighting and audio equipment

• Installation of lighting devices in sports stadiums

• Equipment hoisting in mining, electric power, and other fields

  
  

When selecting Eye Bolts, it is necessary to determine the model and specification according to factors such as load capacity, safety factor, and usage environment. In addition, there are strict requirements for the installation and use of Eye Bolts. They must be carried out in strict accordance with national standards and operating procedures to ensure operational safety.

Although Eye Bolts may seem like small connectors, they are indispensable for ensuring the safety of lifting operations and improving hoisting efficiency. For practitioners in related industries, it is essential to understand the characteristics of Eye Bolts and how to use them correctly.

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