Review on Malleable Industrial Standard Threaded AUTHENTIC by Alvin Bonifacio

Was a bit skeptical after reading some of the one star reviews that said the flange base warped. All ten arrived in perfect condition. The base was as flat as anything I've bought at hardware stores. The threads look fine, but it would be nice to have a 3/8" NPT tap on hand in case the threads seem a little rough. They are made of commercial iron and not steel. So when you remove protective oil, you start to rust within minutes. If your project is going to be painted, simply spray them down with a good primer spray like Rust-Oleum Car Primer. If paint gets on the threads you can pry them out with a faucet before use In my project anyway I will probably buy more in the future as the price is right and the quality is acceptable for the projects I will be using them on.