What kind of rivet is this on an Andersen storm door?
I call them &quot;drive rivets&quot;, as you simply slip them into the hole and drive the pin in. They're readily available at well-stocked hardware stores. Andersen uses 1/8&quot; and 3/16&quot; sizes, if I recall correctly.
For your application you could also simply use corrosion-resistant sheet metal screws, or, as Jimmy Fix-it suggests, pop rivets.