OK, some advice if I may. I'm sure you know this part of the panel gets a lot of "strain" not having a deluxe pull handle.
EDIT here: You are missing a part that bolts to your door. One of two shelves.
I have taken the metal "shelf" and welded a machine screw nut to the bottom of it and used a machine screw with same top as originals.
OR make sure you have a nice tight sheet metal clips on the shelf, and your door hinge Detent roller is well lubed and spins nicely.
Your screws look correct. the sheet metal clips will slide to right location. Originally there was no clips, they fitted the screws into the slots you see, and they pull out easily, or wreck the door panel.
Here is a pic of what you need, and what I was talking about above. This pic is a '72 T/A a member restored.
