Eye bolt, Spool bolt
An eye bolt is a bolt with a loop at one end. They are used to firmly attach a securing eye to a structure, so that ropes or cables may then be tied to it. Machinery eye bolts are fully threaded and may have a collar, making them suitable for use with angular loads up to 45°. Eye bolts without a shoulder should not be used for angular loads.
Eye bolts shall be free from visible defects that might affect serviceability. If any defects are visible, the eyebolt should be removed from service and destroyed.