This AC box uses the square ended studs with screws to hold the two halves together.
Not all AC boxes are that way. Some have pointy studs, and some use big spring clips to hold the halves together. Of the ones that use spring clips, some are marked like the boxes with screws, and some have a completely smooth lip. Maybe I'll go into this more in depth later if anyone is interested.
As you can see in the background, my dash frame was originally green like the rest of the interior and not black.
