Letter 23081

Inconsistency in zinc-nickel finish  

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I have received sample bolts from suppliers with zinc-nickel alloy and a clear trichromate coating. These are the same bolt but the bolt from one supplier is a bright nickel and from the other supplier is a matt silver finish. Both pass the 240 SS requirements. Why the difference in appearance?

John Fraim
- Scottsville, KY, United States

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