If your soldering isn't quite up to scratch, or you just don't own a soldering iron yet, then these nifty hammer headers from Pimoroni might be just what you need. They come in both male and female, and use crafty little retaining nubbins to grip tightly into the holes on the PCB.
Absolutely no soldering required! All that's needed is a few gentle taps with a hammer and bazinga! Your header is securely attached to your Pi Zero or pHAT.
The installation jig kit contains two acrylic base pieces, onto which your Pi Zero or pHAT sits, two nylon bolts, an acrylic top piece onto which you hammer, and both a male and female header. Make sure you carefully read Pimoroni's guide for fitting hammer headers.
We strongly recommend using the installation jig! If you want to try without it then godspeed to you, but it's a delicate and tricky process! The female headers are simpler to insert than the male headers as you can hammer straight onto the plastic of the header, but the male ones are particularly tricky without the jig.
Please note: Hammer at your own risk! We can't be held responsible for any damage that you may cause to your Pi Zero, pHAT, fingers, or headers while fitting them. If you follow Pimoroni's guide carefully then you should be fine. If this worries you, then get yourself a soldering iron instead!
Note: Pi Zero not included!