How to soldering headers without drilling holes

During a moment of weakness and extreme laziness, the idea of soldering a through-hole header as normal SMD components popped up. This method is probably quite old and may had been used by a lot people but since all homemade PCB guides I have read has not mentioned this method before, may this be the first.

Step 1: Place down the first blob of solder

Put down a blob of solder onto the first pin you want to solder. Since I'm right handed, I prefer to hold the soldering iron with my right hand and hold the pin header with my left hand using a pair of tweezers. Thus I solder the right-hand side of the header first.

Step 2: Solder the first pin

Heating the blob of solder with the iron into liquid form, align the desired pin of the header in it and make sure to align the rest of the header with the header footprint. After removing the soldering iron, keep holding the header in place to ensure the alignment is secured as the solder solidifies.

As you can see, the header does not have to be perfectly aligned on top. It doesn't even have to touch the PCB.

Step 3: Solder the last pin

The most outer pin on the opposite side is then soldered to hold the header in place before the rest of the header is soldered. This is being done instead of soldering the immediate pin because if the soldering iron tip is big enough, it may melt the previously soldered pin. The header may fall over and you would have to start over.

Step 4: Solder the rest

After the header is securely soldered, the remaining pins are soldered.

Step 5: Final product

There you have it! The ability to solder through-hole pin header without having to drill a single hole! The above photo shows a recent breakout board of mine having a total number of 22 header pins soldered with this method.