I ended up with 2 Skadis panel slightly twisted, and after mounting them side by side on the wall, I was annoyed with the result, as you can see in the picture.
This connector allows you to connect 2 Ikea Skadis side by side using the original hardware without an ugly plate in front of the panel.
You can also use this piece to connect the mounting metal bars to have zero gap between the panels without any math or measurement.
Print with 4 perimeter to create the thread with the original screw (very tight fit) or just use a M4 tap.
Short and long versions available to be compatible with all rows
The author marked this model as their own original creation.