Solid handle with cheap screws!

So far, the handle makes a good impression and can be grabbed good!
Only during the assembly, I had problems: After I installed the handles, I wanted to dismantle again and try a different direction, but the screw ran only be solved with difficulty. Finally me a thread is broken, reflecting poor quality of the screws. Now I can not even unscrew a handle, because the thread is crazy. On the other hand, they are also not only tighten loose handles, or you will not keep enough on the handlebar. Defenetiv saving at the wrong end - too bad!