Button Haded Bolt Oxidation.

Good Morning/Afternoon/Evening.....depending on where & when this finds You,

So....there I was replacing the exhausts, stock indicators and tail tidy on my Speedy and I find that a lot of the button allen bolts are suffering from what I believe looks like bimetallic oxidation. Now, a wire brush temporarily removes the chalky residue but I was wondering if anyone out there had tried to fix this by replacing the bolts with a more appropriate metal?

Not sure if the stocks bolts are ally or another metal combo that is causing the problem but I assume that stainless steel would do the job....its just a case of getting the correct size and the button head on them I guess.

I know its along shot but has anyone come across this?

Thank for taking the time to read this

 

Thank you all for taking the time to reply. It is definitely bimetallic oxidation....poor material choice me thinks. I'm going to replace the body panel button nuts with either stainless steel or better still, black anodized button nuts.....I'll let you know how that goes