They're $1 each, so salvaging old faucets isn't worth it. The threads didn't match exactly, but I was still able to use my fingers to start adjusting. That's why I give 4 stars.
Perfect fit. Nice to have them in my brake line kit. Must have both metric and SAE connections. The big chains are usually outside if you go there, just before they close - of course!
Hardware appears to be of decent quality. 1 star for that. BUT the description is wrong. Length not specified! They are very short and in many cases may not seal properly (or at all). Be very careful not to lose any liquid.
Pros
High ratings for support and durability from testers
High quality equipment. They're not super soft like some of them (like the ones I bought at my local parts store) so you can twist them pretty well without damaging them in the process. I had to turn some of them a little harder with a vise (bad torch tool or user lol) and they held perfectly on the vise. They worked perfectly on all lines of my civilian 96th.