Terrible. When this hinge is taken in hand, it is a defective product which does not open even with full strength with a gouged feel. The bearing part is narrow. Since the axis has come out, it looks rough and looks like a homemade miscellaneous process. Grinding and spreading the space into which the bearings enter little by little with a hand-held grinding stone for kitchen brushing 5 hours. I managed to be able to rotate somehow, but I could not grind perpendicularly to the shaft, but I am astonished. This will not have a long time. There are protrusions for caulking on the shaft, is that what you mean by caulking?