A woodworker's fastener is an essential tool for any woodworking project. The two most common types of fasteners used by woodworkers are dowels and screws. Dowels are cylindrical rods made from wood, metal, or plastic that are inserted into pre-drilled holes to join two pieces of wood together. Screws are threaded fasteners that are driven into the wood with a screwdriver or drill. Both dowels and screws are used to secure pieces of wood together and provide a strong and lasting bond.