MCIGICM 10pcs Male Header Pin, 40 Pin Header Strip (2.54 mm) for Arduino Connector

Excellent product.

great A+++

Cant beat them. I was impressed at how well they were made. Good product

Looks good, Amazon is pestering me to review this before I have used them yet, but they look like they should work fine.

Pins plugged into my arduino board. Exactly the right size.

Very good.

This has the same spacing as standard Arduino headers. The long side is right for going into the raised sockets on the Arduino (or a shield with stacking headers). The top pin comes out the top of the next board by 2 mm or a little less. Perfect for when you want a soldered connection but will not be adding anything to the top side. Im working on a project where I have to stack and unstack custom shields multiple times. These pins stand up to that nicely. Much better than stacking headers, which always seem to use flimsy legs that bend too easily. Of course you should still make an effort to move these pins in and out vertically, but Im not perfect and so far my slips have caused no damage.

Decent header pins, large enough quantity that I don’t see myself buying more anytime soon. Soldered with them normally. Nothing remarkable.

Came quick mail. Just what i needed.

I needed these for some sampler repair work. They worked perfectly. I hit the leads with some distilled alcohol as others have mentioned. I had no issues with solder adhesion.