Anchoring a Residential Fridge

My friends used rachet straps and eyebolts thru the floor. Where there wasn't room to operate the rachet mechanism, they used a chain (padded the chain with non-slip drawer liner & protected the corners of the appliance box with "L" shaped metal pieces) that looped from an eye bolt thru the floor on one side to an eye bolt thru the floor on the other side. They tightened up the chain from under the floor. They did this a week later to take into account the chain stretching. The appliances haven't moved at all. Pretty good considering they promptly put the bus into an abandoned store parking lot that had a good 12" drop. Downside to the setup they used was that it takes two people (one inside, one outside) to tighten up the tie downs. I was happy to help. Hardest thing was getting back up off the floor! :D