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I used to buy these when they were super cheap, I wish I'd got more the gold was far more muted which looked like brass, alas they dont have gold any more but do have others.
Then I used to get the TA ones, but again sold out everywhere in gold/brass now - still have silver.
https://www.sjscycles.co.uk/chainsets/ta-self-extracting-crank-bolts-m8-silver-per-pair/
So I was forced to buy expensive german ones this time
Ritchey cranks turned out to be 130BCD so forced my choice to be the Shimanos