aren't adjustable spanners much worse for rounding bolts as they're never quite the right size and a bit loose?
^ This very much.
Like Breadly said, a good old fashion spanner will do the trick;
If they are rounded, get a mole wrench, a new 15mm nut, and then get a proper 15mm spanner.
ftfy.
@edscoble started
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^ This very much.
Like Breadly said, a good old fashion spanner will do the trick;
ftfy.