Those Fuels are one of the best looking wheels on the market - unfortunately, like most things nowadays, they fall short on the details. Those bolts on the rim are some sort of coated Chinesium junk and are known to capture water and rust behind them, only to have them leach out onto the wheel itself.
To circumvent this common issue, a friend of mine recently bought a set and spent ~6 hours removing each of them, retapping threads and installed near identical bolts in stainless steel. Per his comment:
" I removed all 120 junk bolts and washers from them (Chinese “paint” that looked like magic marker), tapped all 120, and installed 8x1.25x10mm (the junk ones were only 8mm long) stainless bolts with a .060 washer, sealed of course. Some of these wheels end up with rust leeching out of the holes due to the junk hardware, wanted to avoid that."
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BTW, I saw the Manhattan Project in your title - are you near Los Alamos?