Security Screws for Battery Cover - Stick Up Cam

The security screws that were supplied with my Battery-version Stick Up Cam just fall out - they aren't the right size. Ring customer service would not supply a replacement and claimed Home Depot would have it. But they don't.... A set of security screws I bought on Amazon don't fit either - diameter too small. Does anyone know the thread size/diameter, type and length of screws that fit the bottom battery cover? It's a vulnerable design without a security screw. This is an unfortunate design issue. Ring should step up to the plate and solve it.