When two dissimilar metals are touching, the electrolyte will jump-start the corrosion process. Some common electrolytes are water, salts, and bacteria. As electrons move from the anode (the basic metal) to the cathode (the noble metal), the first metal is vulnerable to oxidation.
So now you may create another concern.or coat the bolt threads with ultra ref gel it for.
They make a product call ospho it will convert rust ,then you can paint it .
Just my thoughts…
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