I see several pinsider provided an eBay link for China made colored bolts but in metric, M2,M3, M4, M6 etc. does any know what the US equivalent is for #6 -32 and #8-32?

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Looks like 6-32 is m3.5 with .6 thread pitch and 8-32 is m4 with .7 pitch.

Not sure if the Metric sizes vary enough in pitch per size to cause a problem though? I think last time I was on McMaster-carr it seemed like you could get fine or coarse thread fir metric sized bolt/nuts

I have actual 6-32 nuts on my website. But they aren't cheap because they are made out of titanium