Screw thread to mount persee

I am trying to mount the Persee to a board using the thread on the lower side.
Unfortunately my tripod screws (1/4", Ø12mm x H14mm) don’t fit in.
Is there a specification for the thread of the persee?


We are using the nikon screw 1/4 " for camera and we do not have any problem.

Yes, can confirm. Any standard tripod screw should fit (1/4" UNC, 20 TPI (Turns per inch)). Tested with a Cullmann CROSS CB2.7.

The nut screw in my Persee was mounted upside down. Now the 1/4" screw fits.

Thanks for your responses!