Connecting links also called Hammerlock Coupling Links. We often use it to construct lifting slings.

The marking on the standard connecting link will include size and WLL. We usually use inch or mm to express the size， and this size refers to the diameter of the suitable chain. We use ton or lbs to express the WLL, this WLL refers to the working load limit of the link. So when we choose the connection ring, we can refer these two data.

Coupling links are available in grades 80, 100, and 120 drop forged alloy steel. Among these, the grade 80 is by far the most used type.

Coupling links also known as Hammerlocks, connecting links. We we usually them to attach hooks, chains, and other accessories onto the legs of a chain sling or to attach a master link to a chain sling.

The material is high quality alloy steel, hardened and tempered. These are commonly used in industrial overhead lifting applications.

Master links and rings are important devices in the lifting and rigging industry, they are a closed-loop device.

The material usually is forged alloy steel. And we usually use it to make connection points in rigging applications. Such as chain, rope, wire rope and synthetic slings; which could be used for single leg or multiple legs.