How to Countersink a Screw

Countersinking screws is an easy and quick way to make a wood building or craft project look professional.

Using basic tools and following a few guidelines, learning to countersink a screw will be a breeze.

Measure the screws you will be using. This measurement will determine the size of the countersink drill bit or regular drill bit and where you will place marker tape on a regular drill bit.

Determine the size for your countersink drill or regular drill bit. The Length of the screw and the pilot hole diameter determines the size countersink or regular drill bit you will use. Your local hardware store will have someone to help with sizes if you need assistance.

Measure if needed and mark on the wood where you want your first screw.

Mark the depth of your pilot hole using masking tape if you are using a regular drill bit. This will prevent drilling the pilot hole too deep. If you are using the correct size countersink bit, this step is not needed.

Use the hand drill to screw in the screw. If you use a countersink drill a small beveled indentation has been created and the screw will screw down into this area and be flush with the wood surface or slightly lower. If you used a regular drill bit and made a pilot hole only, you will need to use a little force and screw the screw a few turns to get it to sink in level with the surface. This is not the best method but will do in a pinch.

Fill in the small recess where the screw head is below the surface of the wood with wood putty and scrape it off level with the surface. This step can be deleted if you don't care if the screw can be seen.

Things You Will Need

  • Screws
  • Hand drill
  • Countersink bit
  • Tape measure or ruler
  • Wood putty (optional)
  • Masking tape