Modern screw connectors are increasingly being used in timber construction projects like the Expo 2000 roof and Paris airport. Full thread screws have high load capacity but no clamping, while partial thread screws clamp materials together. Common head styles include washer heads for tension capacity and countersunk heads for flush mounting. Proper pre-drilling and corrosion protection help ensure long-term strength of screw connections in timber structures like cross-laminated timber buildings. Technical information on screw specifications and designs is available from manufacturers.