Designed to hang from the botton row of the HSW and it extends backwards a bit so you can't place this in the middle of the wall.
Screwholes are M3 sized countersunk and are near impossible to screw in. Had to remix an insert so I could tighten a nut from the insert side. Suitable remixed insert is included. You need two.
STEP file included.
The author remixed this model.