Horizontal connection between plates If I only have minimum height available (one plate), how can I make a horizontal connection between two components? I need the connection to be easily disconnectable yet sturdy (like technic bricks with grey connectors).

I thought about hinge plates (4276/4275), but they are far too tight. I don't own any of the old ones (x1125/x1126), so I cannot check myself, but are they less tight?

Clarification - the components are built regularly (studs up), and sit next to each other and should be moved horizontally to separate or reconnect them.

There's no such thing as 2921 but only one plate high? I'd use that together with 4085, that would be perfect.
Have you tried horizontal clips? They will be a little taller than 1 plate in the center, but you might be able to adapt them to your needs given that the connection point is just one plate. Perhaps these parts:

60470b



48336

 

Something like 4623 with a vertical clip might also be a possibility depending on your constraints: