Soldering these small pieces works better for me than CA. With CA, the buckles will glue themselves to my tweezers, not to the parts they're supposed to stick to. Although I don't recommend using a soldering gun. They're hard to hold, hard to control and are too hot for small soldering jobs. You really need an iron with a very fine point. Even my Resistance Soldering Unit is a bit too big for those tiny piece of bent wire.