What is the main connection fitting used for chain slings in rigging?

The master link serves as the primary connection point for chain slings in rigging. It is designed to withstand heavy loads and plays a critical role in the overall integrity and safety of the lifting system. By connecting the chain to the lifting device, such as a hook or winch, the master link distributes the load evenly across the chain and ensures that the sling can function effectively during lifting operations.

In chain slings, the master link must meet specific strength and safety requirements to adhere to industry standards. Its construction allows it to handle the dynamic forces experienced during lifting without compromising the chain's strength, which is essential for safe rigging practices.

Other options, while relevant to the rigging process, do not serve the same purpose as the master link. Connector links, load links, and joiner links have specific applications but do not serve as the primary load-bearing connection fitting for chain slings. Each of these other links might provide useful functionalities in different contexts within rigging, but they lack the central role that the master link plays in ensuring the strength and stability of a chain sling.