I have a hollow-core metal door out to my car port, and it gets a lot of traffic. I'd like to add a kick-down door stop to the door. I think one option is to drill pilot holes and use self-tapping screws to secure the stop to the front part of the door. But I'm worried that this will bend the door's sheet metal. Should I instead drill all the way through the door and bolt the door stop to a plate on the other side? If so, is there any way to make that look nice?
If you make the plate with spacers combined with internal threads you should be able to arrange that the screws cause a clamping on one surface and just a bit of compression on the whole thickness.