|ALUMINUM WELDING FLANGES|
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
perfect for my aluminum tanks
Either the flange was tapped for the wrong size or I received the wrong sized flange. Either way, I had to re-tap the flange to make the 3/16 NPT threads.
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These flanges are made with 6061-T6 aluminum.
The AN867 flanges are all pipe thread.