In the event of an emergency, it is possible to replace the shackle pin with a bolt?

• A. True
• B. Sometimes
• C. Not recommended
• D. False

Answer: (D)

Using the right shackle pin is essential because it completes the load path and provides the intended shear strength for the shackle. A bolt isn’t acceptable because it isn’t designed to fit the shackle’s hole precisely, may have a different diameter or shoulder, and its threads and retention method won’t guarantee the same secure fit under lifting and vibration. Substituting with a bolt can change how the load is carried and may cause the bolt to loosen or fail, risking a load drop. In emergencies, do not substitute; replace with the correct rated pin or follow the procedure to replace the entire shackle.