So I was doing my heater core replacement I have it in and everything. However when I was removing the 4 heater box screws that are in the engine bay I snapped two of them the one that holds the ac drier and the one directly above it. I can't seem to put new ones in so would self tapping screws be sufficient to hold the box that has the three wiring harnesses(sorry I don't know what it's called)

 

That's your PCM. Self tappers would probably work just fine. I think there is a ground wire that goes to one of them as well? If so, make sure that gets hooked up too.

 

Thanks HeyYou. I got the ground hooked up to the top screw. To difficult to get the lower screw in with the drier so it's zip tied now. Broke another vacc line when I finished apparently but heats back to being hot which is great.