Oil filter bolt... what’s up with this?

I bought a new oil filter bolt from a well known Mopar house. I’ve emailed them about this. What is this scale? Heat treatment do this? I didn’t expect to have to clean up such a mess. Considering it goes into the oil system.... gonna take some clean up. Strange. Anybody ever seen this ?

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That's crustier than the stains in my underwear....

Skid Marks.jpg