Question: I messed up trying to assemble an IKEA bed. I accidentally pushed the cam lock with the smooth side facing out. Now I have no way to rotate it to tighten the cam lock and bolt to secure the two pieces of wood. How do I remove it? I have attached some images.[![enter image description here](https://i.stack.imgur.com/INAzB.png)](https://i.stack.imgur.com/INAzB.png)

The part numbered 104895 is facing the wrong way at one location. Is there a way I can extract it?

Answer: 
You can try a really strong magnet. If that doesn't work you can try drilling it. If it starts spinning then reduce the speed of the drill and try to insert your screw while its spinning. If it doesn't spin and you drill through to the open area then you should be able to pull it out with a coat hanger with the end bent.
Use a Dremel moto-tool with a cutting disc to cut a slot in the blank face.

DONE. 

Now the cam lock is double faced.