This method is used by professional carpenter but you can do it by yourself, with simple steps.
This is what you need:
- Drill tip
- Bolt and screwed nuts (see in photo)
- Allen key
- Wood (your pieces for your structure)
You can find all of these parts at the local hardware store.
Step 1: Step 1
Step 2: Step 2
Note that the hole that you drill, must be depth as long as the bolt minus the width of the other piece that you bring to it.
The hole must be drilled straight with high precision to have the screwed nut inserted easily.
Step 3: Step 3
Take the correct key for your nut and screw up to the wood profile.
TIP: If the wood depth is tiny relative to the nut, to be sure not to broken the wood while you insert the screwed nut.
Step 4: Final
To the part where your insert the bolt, flare the hole for a perfect result (the bolt is preferred that are head smooth type).
The last thing that remain to do is screw driving the bolt and the connection is made.