Repair stripped screw holes in fiberglass

As mentioned, if you can get to the backside that would be best, but that is usually not possible. There are many ways to deal with this depending on the situation but I have always had the best luck with the following. Remove the fastener and roughen the hole. This may involve taking a drill bit and going through the fastener hole and drilling off in 2-3 directions a short distance, always being aware of where you are headed. Thoroughly dry the hole. Tape off around the hole. I use an epoxy with a high strength filler. I personally prefer west system but there are many other brands available. West system has a small repair kit for such things(or at least they use to). You will need to purchase either denatured alcohol or acetone for clean up. Fill a small plastic syringe with mix of epoxy and filler. These plastic syringes can be purchased at west marine or similar store. Check it out online. Lubricate the appropriate fastener with wd-40 or similar. Squeeze the epoxy mix into the hole and screw the fastener, without the handle, about the right distance into the hole. Remove tape and clean up immediately. Let cure for 24 hours. Remove the fastener add a little bit of chalk, just because, and reattach handle.