I also use carpenters glue. On fiberglass I use epoxy and coat screw with thin coat of silicone to keep from sealing to screw.
I will fill hole with which ever, put screw in and then back it back out so the glue will gather under the material forming a nut like on the back on the laminate.
2005 Rockwood 8283SS 5er. 1999 Ford F250 Super Duty 7.3 Diesel, extended Cab. 2 dogs and a wife!