If you are looking for commercial grade swing chains, look no farther than the Zinc Chain. These chains can hold up to 3900 lbs and do not have any weak links. Choose between the 3/16 inch size and the 5/16 inch size. The advantage to the 5/16 inch size is that small fingers cannot fit between the links, preventing injury. Choose how much Zinc Chain you need per foot. Bulk orders of swing chain are also available for large quantities.