Pro-bolt is the best out of UK. Expensive but can't beat the black titanium or stainless bolts. Only metric sizes. Did black titanium on my hammerbuilt.I believe black hardware that is affordable is pretty difficult to achieve (that won't corrode)...loads of folks get the cheap(er)black oxide hardware from places like DIY, but that quickly rusts. I think anodized is open solution or painting.
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