I'm finding these all in the carpet and in the outside kitchen storage areas.
The dealer told us there we might see some sawdust until it all shook out, but nothing about metal shavings.
They are most likely from where they drilled holes to install something, they don't clean up/pick up anything, once it's dropped it stays.
Wait til you pull out drawers or take a panel down, have the vacuum ready.
We had only one side A/C ducting in the roof letting air flow. After I repaired the flaw installation. Our whole Rushmore looked like a sawmill. It was crazy.
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1998.5 Dodge 3500 4X4 Black Bart. 150k
2013 Rushmore Jefferson
2008 Raptor 299 toy hauler
Ruby & Jade. English Springer Spaniels