It is quite common to need to tighten up vintage guitar screw holes for any number of reasons the holes can become loose or otherwise insufficient for a good tight fit for it's screws.
In this guitar's case it's neck could be forced to move laterally in it's neck pocket, ....and since I had already refurbished it's neck heel screw holes, then it was obvious that it was the neck pocket screw holes that needed a refurbishment too.
That job is started by removing the screw and it's counter-sink washer, and then placing 5 or 6 or-so toothpicks into the holes with their wide sides aligned with the screw walls, and then inserting the screw just light enough to hold the toothpicks in place, which will leave the remaining spaces just loose enough to insert more toothpicks to fill all the remaining spaces. (The screw / hole on the left has already been done): |