Stand-Offs Question

I've only used stand-offs a few times and I've always used plastic as my substrate. Can metal (like AlumaMark) be used with stand-offs? I didn't think thin metal could be used because of space between the barrel and cap would be too great. Am I correct?

Put some tiny spacers/washers behind the AlumaMark that are the same diameter as the barrel. These could be cut on the laser.

Good idea, thanks.

the stand offs we use will tighten all the way down