I had bought a monopod from walimex, in which unfortunately the upper screw has solved. Each screwing in the camera had to be extremely careful that they did not fall into the tripod. I had the thing perhaps can also weld firmly, but instead bought this part. Once turned firmly, the bolt can no longer be solved. In addition, the quick-release plate including mechanism is simply awesome. To release you have to open a small backup before you can open the large lever. After that, the plate can be easily removed. The risk of unanbsichtlichen opening should be ruled out. Even easier is the Besfestigung. The disk snaps over a small snap mechanism automatically - turn fuse and voila, the camera is securely attached.