Which rigging hardware should be used to connect both ends of a sling into a hook or when more than one sling attaches to a single hook?

Which rigging hardware should be used to connect both ends of a sling into a hook or when more than one sling attaches to a single hook?

• A. Thimble
• B. Turn buckle
• C. Shackle
• D. Spreader beam

Answer: (C)

Connecting two sling ends to a single lifting point or to a single hook requires a secure, removable connector that can handle the load without deforming the sling or the hook. A shackle provides that function: you place the sling eyes or legs into the shackle body and secure the pin, giving a strong, aligned load path that stays in place under lift and can be easily opened for inspection or reconfiguration. This setup also helps avoid pulling the sling eye through the hook throat and allows multiple slings to attach to one hook when needed. A thimble protects the rope or wire rope eye from wear, but it isn’t used to join two sling ends to a hook. A turnbuckle is for adjusting length or tension, not for making the primary connection. A spreader beam distributes the load across multiple points and isn’t the right choice for this single-connection scenario.

Connecting two sling ends to a single lifting point or to a single hook requires a secure, removable connector that can handle the load without deforming the sling or the hook. A shackle provides that function: you place the sling eyes or legs into the shackle body and secure the pin, giving a strong, aligned load path that stays in place under lift and can be easily opened for inspection or reconfiguration. This setup also helps avoid pulling the sling eye through the hook throat and allows multiple slings to attach to one hook when needed. A thimble protects the rope or wire rope eye from wear, but it isn’t used to join two sling ends to a hook. A turnbuckle is for adjusting length or tension, not for making the primary connection. A spreader beam distributes the load across multiple points and isn’t the right choice for this single-connection scenario.