trying to mount z3 gamble/camera plate to bird.

There is one screw that holds the plate to the bird with the cushions in between and I don’t know what size it is.

Anybody have a suggestion?

Hi, thanks for the inquiry. If you could use the Zenmuse X5 or X5R, the gimbal plate is already compatible with the Zenmuse Z3 camera. You may refer to the video tutorial below for installing the Zenmuse Z3 and also changing the mounting plate of the Inspire 1. Hope that this would helps with your query. Thank you for your support.

Thanks, but I am trying to mount the plate to the bird. I bought it used without the camera or mount. I have the parts but not th solitary screw that holds the plate to the bird!

What screw is used?

I have the screw package DJI sells for the Inspire 1.