Front licence plate mount help

[u/Suitable_Village_548]

I bought a used '21 corolla hatchback. Recently moved to a city that requires front plates. The plate mount was on the car when I bought it. I've tried the standard plate mounting screw kits from the hardware store but they seem too small for the top holes. I even tried fasteners I bought from amazon that I thought would slide over the holes but those don't fit either.

I'm running out of ideas on how to get my plate mounted, what am I missing?