Any ideas on preventative measures to prepping exhaust bolts for later removal?

[newman]

@Maksim2000

You people take everything so literally, they a steel nuts coated with copper. Most German cars use them on exhaust manifolds etc.

That would be a copper plated or copper-clad nut.

It’s not a matter of us taking it too literally, it’s just more about you being wrong.

LOL.