I think some people have reported that they bolted them on?
I am not a welder, but I also think that some people have posted that they have "plug" welded them on and then ground the weld-points flat.
I made the mistake of buying stainless steel side angle strips. It will be interesting finding someone to try plug welding them together (bolting them on might be the only answer?).
Maybe a welder will post information and clear-up/correct the speculation about possible options?
