Review on 1000 PCS AWG 22/0.5Mm² Copper Crimp Connectors, Wire Ferrules Insulated Pin Cord End Terminals Black - XHF by Corey Vaz

There's nothing wrong with them per se but they run a bit large. If you're buying them for an arduino project or raspberry pi, they're just barely, barely too large to use on those. They also don't hold a crimp. I used the official "box crimper" (you know the thing) tool and I couldn't get them to crimp enough. Then I tried putting a flame to them to shrink them up and they just kinda melted into goop. What I found worked was to push the wire into the pin and crimp it with channel locks, but that's definitely not the best solution. The problem is they run large. Good value for the money, but prepare to either crimp the pin or put superglue into the back side to secure the wire.