All Porsche Wheels and the (standard) CSR Wheel feature an internal table clamp if the wheel should be mounted to a table. Aternatively you can mount the wheel with M6 screws using the drilling template which can be found in the download section.

The minimum plate thickness for the table clamp is ~3mm
The maximum plate thickness for the table clamp is 47mm
On the bottom side of the table plate the clamp needs 86mm depth to be mounted properly.

You can find a mechanical drawing about the clamp and these measurements inside the download section of your wheel.
If you table does not fulfull these requirements, please check the ClubSport Table Clamp V2 which could be the perfectly stable solution for you.