2016 Jayco Sport 12UD Full Size Door Hanging

[Reddy]

I had the full sized door replaced on our 2016 sport 12UD a couple of years ago under warranty. Then we promptly parked it and didn't use it for a couple of years due to....reasons. Finally got to installing it last weekend and I noticed that the snaps on the door frame that are used to secure it to the roof when travelling were missing (not installed). It doesn't seem to be a big deal to replace, I'm just wondering if the original snaps were attached using sheet metal screws or pop rivets or some other method.