Hi!
I stopped worrying about those a LONG time ago. My old GMC has only the front brakes. Stops just fine on those. Maybe that's irresponsible but I just got tired of diddling with brake lines. I've never understood why my old truck was so hard on them.
errrrrrrrrrrrrrrrrrrrrttttt....WHEW! (William's pulse slows back down just inches from the redline...) No, just kidding. My brake lines won't stay in one piece and I haven't fixed them yet.
Sorry, just lightening the mood a bit. :-)
Dunno much about lugnuts. Can't really help you with those. I don't know what kind or how old the ones on my '84 Sierra are, but they've done nothing except stay there even after a rim change on all fours. I'd assume they could be factory lug nuts, but I don't know that. They haven't yet wept anything onto my nice rims.