1970 Door Panels

[gkhashem]

Ok guys I am looking at the "punch list"

Door panel on drivers side missing two screws at the bottom. I have collared screws. But the screws are not catching anything to screw into.

How long are the screws or is there a u clip underneath the panel that they screw into?

I rather not remove the panel unless I need to.

Guess I could remove a screw to check length but rather not if there are clips in there since they can be a pain to put back and align.

Thanks