This is probably a stupid question to you case mod veterans, but I just bought a pair of aluminum cases (with transparent sides of course), that came with a part that's a complete mystery to me. It was not addressed in the assembly instructions, and I haven't got a clue what it's for.

It looks like a metal stand-off, except it's 6 inches long. It's threaded on both ends, but the threads don't match any of the scews included with the case.

I see absolutely no need for it, but it bugs me a bit not knowing what the heck it's for, so I'm hoping someone here can enlighten me!

Thanks...