[benzofuran]

Anybody seen similar hardware out of aluminum or coated steel or stainless that's also readily USA-available? Machining these could be done on a small lathe and single-sided CNC...

[otikik]

You might want to try the Wranglerflange (I have not tried this myself)

https://thewangerflangecompany.bigcartel.com

[somehnacct3757]

I don't know about the metal portion of your question, but I ordered from the OP site just fine with a US shipping address