What a cool idea, I have been looking for some orange sliders, no idea why this didn't cross my mind before!!!
Threaded rod is usually only 6.6, so pretty weak, I can't see them staying on the bike if I ever crashed it, I would hope that proper sliders used stronger rod, but there is a lot of toot on the net these days, so 6.6 threaded rod is probably as good as most!
Cheers :-)