Antenna mount for pole

I needed a way to mount my antenna as high up as possible on a pole.

The pole is sold as 38mm diameter, the antenna is a no brand 868 MHz lora antenna.

There are 2 versions of the antenna side, 1 for countersunk screws (DIN965) and 1 for hex round screws (DIN912). Both are based on M6 of 60mm long.

The design can be found on OnShape via https://cad.onshape.com/documents/682a7f471ff1f3d46e880f63/w/fc01d0321d4a246b4667d629/e/3601d88e1524af596cb6609c

The mount I bought https://www.bol.com/nl/nl/p/blueqon-wml30-100-cm-muurbeugel-balkonbeugel-antenne-beugel-38o/9300000071163135/