The eye bolt is a bolt which has a loop at one end. Eye bolts are used to attach a securing eye to a structure, so that wire ropes or cables can be tied to it.
Crosby and Chinese
The eye nut permanently connects to the rigging screws such as chain slings and provides an eye to a structure.
The long shank eye bolt can be used for straight line or angular pulls. Longer shank in comparison to the regular eye bolts, allows the bolt to go through thicker objects.
Crosby – Chinese