I can think of similar, but not exact. They're called u-nuts. https://www.jetpress.com/component-...readed-fasteners-and-push-on-fasteners/u-nuts Those I think you can find at a parts store or hardware store.
I have the rivet kit. But no river gun. They can be open for now..I believe that those little holes about and below the headlights were originally rivets. I went to True Value and bought stainless button head machine screws with nylock nuts. Or maybe they were chrome, can't remember.
They also had a decent assortment of J nuts for the headlight bezel screws.
Yeah... I don't know why I forgot then it dawned on me. So I deleted the post but thanks.It's from the driver's seat for reference