Originally Posted by
Scipunk
@
rhm wow that's really simple, thanks for the info! Are spoke nipples all the same?
Well, no. But practically speaking, nearly all garden variety spoke nipples are chromed brass and are close enough to the same size to work for this purpose. If you see a junked bike wheel in the trash and clip a few spokes out of it and take the nipples, odds are close to 100% they'll work fine. Don't try to build a wheel with them, though.
But no, to properly answer your question, there are aluminum ones, and steel ones, and all kinds of funky ones that go on various non-traditional spokes. Avoid anything like that. The ordinary brass ones are perfect.