How do I mount the TMW Throttle to UCM?

[Oly35i]

I just got a UCM Pilot-C kit and have not been able to find info for mounting the TMW throttle to the plate. There are no instructions or tutorials. What I do know is 3 of the m5 screws mount the throttle, but the thumbscrews don’t thread to anything in the kit and the cap hex screw does not fit anywhere I can see.
I am not sure if I am missing any hardware that was supposed to ship with it or not so I am posting screenshots of the throttle hardware packet and the bracket/plate.

[fallout9]

3 round heads on the throttle, the flat cap on the top of the thumb nut. Second thumb nut under the countersunk you already installed.

[Oly35i]

Thanks a lot! I had to move the plate as well as I had the countersunk in the wrong position. Here are images if anybody else finds this useful.