Eye Bolts
An eye bolt is a bolt with a loop at one end. It is a mechanical fastener with a threaded shaft and a head forming a ring. They are used to firmly attach a securing eye to a structure, so that ropes or cables may then be tied to it. A common use is to create a lifting eye so that a crane can be attached to machinery, with special-purpose lifting eyes rated for their safe working load. High-strength eyebolts have forged heads that normally include a substantial shoulder.