How would I remove this?

I’m trying to remove these screws from my car, but I don’t know what to use or what the name of the screw even is. I’ve tried a wrench and a nut driver, but neither of those worked. I’m wondering if I should use an impact driver?

Anonymous2021-04-07T03:36:24Z

a closer version

Anonymous2021-04-07T03:22:04Z

Poor picture. Hard to tell. Need to zoom in more. Maybe they take an allen wrench or allen socket that inserts inside the fastener head. That's my guess.