You would need thin CA for what you are doing. You will just need to place a drop or two on the top of the hole and let it run down. If the holes that you are trying to repair are stripped, you may want to take your screw and lube it up with some vaseline. Wipe of all the excess. Fill the hole with epoxy and screw your screw in. Let it dry and you are good to go. The screw will unthread if you need it to later. Good Luck, Dave