What you need to do is use a receiver tow hook like this:
Or like driver3 said use the hitchpin and go through the middle.
And if you are using chain get sand bags to put on the chain to weight it down.
If the chain snaps it will act like a whip. You want to reduce the risk of hiting something or someone.
Second the hitch when bolted using grade eight bolts should be able to bend the frame before braking off.
Remember the military trucks, their grendal hitches are bolted to the frame just like Tone's.
Make sure you use the proper hardware and lock washers and or nuts if you can't get it tight.