Do a quick google search... and I think I've even seen them on eBay. If that doesn't work let me know and I'll see what I can do to help. Sometimes I have them turn up at home for various reasons.
Nuts, bolts and general hardware is often cad-plated. It typically has a gold-coloured finish but not always. I'll try and find some examples and post them up for you.
Do you have a plastic bag vacuum sealer?
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