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Lesson 2: Mechanical Connectors

Many types of fasteners and connectors are available for use in attaching one wood structural unit to another. Some of the common types include:

  • nails
  • screws
  • lag screws
  • bolts
  • power-driven fasteners (nails and staples)
  • thin-gauge steel plate connectors
  • metal plate connectors
Other connector types include:
  • split rings
  • shear plates
  • timber rivets
  • wood dowels
  • drift pins

Small-diameter fasteners are considered to be those with a diameter less than or equal to 1/4 in., including nails, staples, and wood screws. Nails are the most commonly used small fastener.