Invisible mounting hardware for a particular kind of wall unit

mounting

I'm looking to build my own version of this wall unit: https://retrorenovation.com/2012/05/10/barzilay-multispan-vertical-storage-system-valuable-scandinavian-modern-wall-unit-design/

I think I know how I'm going to do the cabinets and the shelving, but the one thing that I can't figure out is how to mount the top of the large wood L-shaped beams flush to the wall with no hardware showing, and no pocket holes.

Well, that's not accurate. I'd like to use a mount kind of like how the rear view mirror of your car mounts to the windshield: that sort of U shaped one where the mirror slides down onto another U shaped piece, but I have no idea what that kind of mount is called. I feel like this would be the best solution to prevent lateral movement of the brackets.

So if you know what that kind of mount is called or if you know of a better way to mount this thing, let me know.

Best Answer

The type of fasteners that you want are not common, so you're going to need to do a little digging, and focus on brackets used in furniture manufacture. One idea I had are bed rail brackets. Some might be too large, but this will give you a starting point for more research:

Bed rail fastener

Bed rail bracket

There is another style here at Rockler.

Now, these are sold in wholesale quantities, so I don't expect this link to directly help you, but this is another style of bracket you can find with some more looking:

hidden bracket

AliExpress bracket