KingChain® Quick Links are versatile connectors. Originally designed for chain repair and attaching fittings onto chain, Quick Links can be used with rope or a combination of rope and chain. They're great for chain repair, dog leashes, swings, hammocks and restraining gates. They quickly join two chains without cutting or welding to keep the chain usable. The threaded nut allows you to quickly and easily open and close the link for attachment and detachment. Made from steel with a zinc plating, this link should last for years. Safe Work Load (SWL) of 290 kg (640 lb). Never exceed the Safe Work Load (SWL). Do not use for overhead lifting. 1/4" wire diameter x 2-1/4" overall length. 10 pack.