Vent window screws

[Raked 64]

I am trying to assemble the door glass etc on my 64 c-10. I took the truck apart a long time ago and some parts have gone missing!

What type of screw holds the vent window to the door? I am talking about the 3 that go through the door frame.
Looks like it will have to be self tapping? I dont have any screws.

You would think they would come with the new vent windows for what they charge for them!!!

Anyone know where they can be bought of maybe I can source them local ??

Thanks for the help!