When attaching rigging gear to padeyes and lifting lugs, the recommended hardware is

• A. Shackles
• B. Turnbuckles
• C. Wire Rope Clamps
• D. Carabiners

Answer: (A)

Using shackles is the best choice because they provide a simple, secure, straight-load connection that transfers the lift directly through a defined bearing surface. The pin-and-body design of a shackle keeps the load aligned with the padeye or lifting lug, reducing side loading and bending moments that can weaken the connection. Shackles are available in rated working load limits that match the rigging system, and they are easy to inspect and replace if needed. They also allow the sling or rope to pivot freely, which helps maintain alignment during the lift and minimizes the risk of pin fatigue or misfit.

Turnbuckles are meant for adjusting length and tension, not for carrying the primary lifting load through a fixed point; relying on them for a lift can introduce misalignment, thread stress, and potential loosening. Wire rope clamps are intended to terminate wire rope ends, not to serve as the main lifting connection to padeyes, and they can crush rope or slip under load if misapplied. Carabiners can fail under side load or if the latch opens during a lift, and they’re not always ideal for fixed lifting points where alignment and maximum strength are required.