I’ve removed my old fresh water tank and will soon install the new one. (This is a 54by28by7 inch tank on the underside of my trailer) There are wide straps that go across from the main support beams that bear the tanks weight. To remove the tank I had to drill out the screws. As I put in the new tank I need to somehow replace these screws. Any suggestions? I was thinking maybe just using Roofing tape, or maybe a small round head screw and not on the bottom?