You drill the striped screw hole out to allow a properly size wood dowel to be inserted.
Fix cabinet door hinge particle board epoxy.
Apply an epoxy bonding agent to the inner edges of the hole.
Mix it with hardener in the manufacturer s recommended proportion.
Drill out the stripped screw hole to accept the plug.
Use a putty knife to smooth the top of the repair to make sure that the surface is level with the rest of the particleboard.
Affix the broken piece if the piece is still attached to the particle board then dry fit it first to determine how well it will sit.
Taking a couple of wooden tooth picks in hand dip them in the bondo.
Now insert them into the over sized hole that is too large for the cabinet door screw.
And it will hold for a long time.
Transfer a small amount of polyester resin auto body filler or epoxy wood filler to a flat surface.
The dowel then carries the thread stress and not the cabinet.
Start by removing the hinge screws on the cabinet and flipping the hinge out of your way.
The bonding agent acts as a bridge between the particle board and the epoxy putty ensuring adhesion.
Step 4 fill the hole in with the epoxy putty.
Apply wood filler following the directions on the can or tube.
Then fill the glue injector with the wood glue and apply it where the piece broke off as well as on the piece itself.
Then glue the wood dowel in cut it off flush and once dried drill your new hole for the hardware again in the new wooden dowel.
Continue to fill the hole with toothpicks and the filler until nothing else will fit into the hole.
Wait several minutes for the wood glue to get tacky and press the piece in place.