The screw may be a clutch head. Attached is a picture of the back of a glove box lock. Once the screw comes out the shell comes off and the lock comes out the front.
Did you check the door lock for a code? It should be on the stem near the lock mechanism.
Otherwise, you'd need a locksmith to pick it for you. It should be a little easier to pick than a door lock as it only has 5 tumblers instead of 6 like the door lock and ignition switch cylinder.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
