The junction box is nice and flat and is used outdoors for connecting two cables under a shallow layer of gravel. The workmanship is good and the Box is one week after the assembly waterproof. Even after I had put the box a few hours in a tub of water, not a drop of water was in it. I hope it stays that the next few years so.
Incidentally stands at Amazon (currently) under dimensions: Width: 10 mm, height: 10 mm. But the box has at the widest point of the threaded part has a diameter of 27 mm, is therefore a little higher than indicated.