[SeventyOne]

Here's what I made. In the end I went with a stronger design. If one of these welds breaks the tank could fall out. instead I took 1/8" thick steel, 1" by ~8" and drilled 3/8" holes the correct distance apart and welded the bolt heads to the plate. this way if the welds break the bolt will still hold the straps in. Make sense?





This is from total distance across including threads