ripped furniture fittings & Pulled Out Screws

By Discolapy, 02/01/2020

Particleboard is a building material composed of wood chips and particles, bonded together with a synthetic resin. It is less expensive, and typically used in applications where the strength of wood is not crucially needed.
 
Very frequent damage is thus stripped screw hole. I distinguish two mains situations that can appear:
  1. Too high applied torque during screw tightening. In this case the screw turns but doesn’t tighten, the screw hole is stripped. Usually, small and local damage to particleboard. This damage is caused usually during installation or simply tightening of screws of hinges or handles. Note that this can easily happen as a maximal torque that can be applied to a screw without any damage to particle board is smaller than max. torque that can be applied to massive wood. The reparation is relatively simple:
    • Remove the screw and clean the hole.
    • Dip toothpicks in glue, insert several toothpicks into the hole and break them off. Either flat or round toothpicks will work.
    • Immediately wipe away glue drips with a damp cloth. You don’t have to wait for the glue to dry or drill new screw holes; reinstall the hardware by driving screws right into the toothpicks.
    • Wait until the glues is dry until fully loading the screw (e.g., do not use immediately the concealed hinge until the glue is not fully dry).
  2. Applied too high outward stress on the screw or the item screwed by the screw to the particleboard. In this case the screw usually breaks away from particleboard, bringing a large chunk of the board with it. This could be large damage. To replace a pulled-out screw, you have to patch the hole with a filler capable of holding screws:
    • Clean out the hole with a sharp tool (e.g., chisel, knife or screwdriver).
    • Transfer a small amount of epoxy wood filler, polyester resin or auto body filler to a flat surface. Follow manufacturer’s recommendation.
    • Use wooden toothpicks to fill small holes, then remove them and scoop a quantity of filler onto the ends. Replace them into the hole and leave them there until the filler cures, which should take about an hour.
    • Cut off the ends of the toothpicks before you drive the screw back into the hole.
    • Fill larger holes and gouges with a plastic putty knife. Force filler into the hole or gouge with the knife, then scrape the surface flat. Let the filler cure before driving screws into it.
 

Thanks for reading the article. In case you find it useful or have some comments, questions or suggestions, please let me know (see below for comment section). 

discolapy@gmail.com

Securing concealed hinge with a cover

Reinstalling hinges to another location

Quick Simple Fix for Particle or Chipboard


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