Accessory Collar for Zhiyun Crane 2

I've needed a solution to mount my 7inch monitor and a video light onto my Zhiyun Crane 2.
The collar ist clamped together with M4 nuts and bolts.

the second image shows that the side threads need to move a little so the nut and bolt are not blocking the thread. ~~This will get changed in the future.~~

The accessory arms fit tight and firm.

There is a 45mm and 48mm version. the 54mm version goes around the handle, the 48mm just below the first stepper motor, above the focus knob