Review on 💡 Screw Terminal Block, PUSU Dual Row Eurostyle Terminal Strip for Electrical DIY and Home Projects, 12mm2 Wire Gauge, 12-Position 380V 20A Terminal Block (Pack of 10) by Kyle Mason

Definitely made for the price. The brass is paper thin and you must be extremely careful when turning the set screw to avoid tearing through the bottom of the connector. See picture (sorry my camera focused on the table and not the connector but you can still see what's going on). I have a bounce rate of around 25% right now, which is annoying, but it's not game over. I've never had this and have been using these things for years. So: not the best, probably better to avoid and buy something that doesn't fall apart when you look at it weird, but it (mostly) works. But I wouldn't buy them again.