What hardware to purchase to hang a tree swing with chain handles.?

I purchased a bucket type tree swing with chain handles online. After wrapping the chain around the tree limp how do you hold the two pieces of chain together.|||S hooks from the hardware store . Put pieces of garden hose over the chain to protect the tree limb.|||I'd probably deviate from the S hook if it was a bigger chain and go with some kind of clevis and screw to make it more permanent. S hook is wonderful for a small chain but if this is larger the clevis and screws would work. You could even take a small bolt and put it through the chain loops.