Bought my first car this week!

[Electronic M]

Originally Posted by maxhifi

I would have no problem to reuse that nut and bolt. Here's my procedure for making old junk like that useful.

1. Spray it with seafoam "deep creep" and let it soak in

You were right. I found another wrench that could hold the bolt head, oiled the nut, removed it, cleaned the oiled threads with a rag, twisted the nut on and off a few times, repeat, and voila it is about as smooth as a new nut and bolt now!
I'll might still get a new nut since I rounded the head a bit working on it.

Thanks for the motivation/advice.