Unfortunately for me either of the screws are to big to fit in the hole. So far the seller hasn’t contact me to make it right ,to send the wrong screw or to give me my money back.
Junk,it’s unusable,the screw it’s bigger then the hole in the adapter.
Allen key is strange, it is 3/16" (4.76mm) and the screw is a hexagon 5mm. But it's not important, the bracket is perfect, the screws I got 2 pieces with different threads. Thanx