Cap for a 15ml Centrifuge tube

Hi,

I am not a mechanical engineer but I wish to create a cap for a 15ml Centrifuge tube (https://shop.gbo.com/en/row/files/22162689/188271.pdf).
What are the parameters that I have to consider regarding the cap thread and is there a Rhinoceros Plug-In or script to help me?

Thanks a lot.

screenshot of linked pdf