Gopro selfie pole adaptor

I have redesigned this part to make it compatible with a selfie pod of the brand "Monopod". It is compatible with a camera mounting screw of the usual size (d = ¼"- p = 20 TpI / d = 6.35 mm - p = 1.27 mm).
It is a simple hole below the support, you just have to force the screw a bit into the hole and the thread will be created.
I've also reinforced the external flange which were a bit weak.