FULARR 80Pcs Premium 2 Position 2 Pin Plug-in PCB Terminal Block, 5.08mm Pitch PCB Mount Screw Terminal Block Connector (300V / 10A, Green)

Like every other terminal block like this, it isn't bulletproof. If you tighten the screws too much, they'll twist on the board a bit. The clamp type isn't my preferred, but it works just fine if the wire has been tinned so that it is like solid wire, or if you use a ferrule. If you want a bulletproof terminal block, the problem is the overall design, not this supplier. The supplier has earned a five-star review because I can't tell the difference between the original manufacturer's product and this one (except for the price).I wanted to use these (green) with blue terminal blocks I had on hand that looked like the same design, to distinguish the power in vs. the power out terminals. The seller I bought the blue terminal blocks from doesn't offer them in green on Amazon. They mate perfectly with the terminal blocks I already had, meaning that both comply with the original design specs. Both the "male" protrusion and "female" slot engage with the blue terminal blocks perfectly.

Solid product and a great price. Would buy it again.

Trying to get any gauge wire into these things is a struggle. They connection to the pcb was questionable every time, and they are very clunky compared to decent like items. They don’t work great so I wouldn’t buy again.

Great, easy way to connect wires to reusable perf boards.