The Chain Shackles are designed and rated for in-line tension, they should not be side loaded, as side loading can twist or bend the bow of the shackle. Shackles are the most common way to connect chain to an anchor or something else. Shackles are a versatile tool for connecting lifting slings, wire rope, chain, and rope - these connecting links are essential for a variety of rigging, lifting, pulling, and hoisting applications. Shackles are essential to boat owners and most commonly used to link their chain to their anchor. Chain Shackles are offered for industrial use.