These bolts look like they would be better put to use in a shipyard than in the Sister House. They are HUGE, or as Tom would say, hurkin (sp?).
I put my finger in the photo for size reference. These are the tie downs required by the county. They are used to keep the house from blowing away in a hurricane. We put 12 of them around the perimeter of the addition. I guess there is a part of me that is comforted to know that when another one of those infamous Pacific Northwest hurricanes blows through at least some of my house will remain standing. The other part of me is annoyed at that overkill required by the county every step of the way.