Hi All,  The most effective way to repair a stripped screw hole
involves the use of dowel rod and hot hide glue.  Depending on the size
of the screw, pick a dowel rod that is 3-4 times the diameter of the
screw.  Then drill a hole that matches the diameter of the dowel and
the depth of the screw hole.  Knurl the dowel rod and cut it to the
correct length.  Glue the dowel in place with hot hide glue and let it
dry thoroughly.  Then pilot drill a hole in the dowel for the screw.

Knurling the rod provides an escape route for the glue when the dowel
is tapped into the hole.  It also provides for a stronger bond between
the dowel and the wood.  Pre-cutting the dowel rod to the correct
length avoids the problem of trimming the rod once the glue has dried.

In my opinion, this method is simple, effective, professional, and
inexpensive.  While there are those who advocate using epoxy and
mold-release as a panacea for stripped screw holes, I believe that
method is comparatively messy and relatively expensive.

Musically,

John A. Tuttle
Player-Care.com
Brick, NJ, USA