Features:

• The C2 decking screw comes with a double countersunk head and a double slash point for rapid pick-up.
• Coated with a patented multi-layer corrosion resistant plating to withstand up to 1,000 hours in a salt spray cabinet
• This
  new and innovative design enables the screw to rapidly penetrate the
  timber, cleanly countersink and securely clamp the decking board to the
  joists