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14 ga. CRS, Zinc Electroplate 0.030" THN? Huh?

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Q. Hello,
We unearthed a drawing for a part that has the following material callout:
"14 GAUGE CRS, ZINC ELECTROPLATE 0.030" THN"

Any ideas on what the THN means? 0.030" is definitely not THiN...

This is the base of a rotary bed in a chemistry related machine.

Thanks,
Paul

Paul Stuart
- Sunnyvale, California
April 19, 2023

A. Hi Paul. 0.030" is not a plating thickness (that would be 10X the thickness of high quality plating and an impractical thickness for electroplating).

Sorry, neither "0.030 in." nor "THN" mean anything to me in this context.
Luck & Regards,

Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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