Big Timber Fasteners BTX™ BTX93 #9 x 3" Exterior Multi-Purpose Wood Screws, T25 Star Drive, Bronze Coated, 2000/Box

General purpose corrosion resistance exterior screw for exterior professional operations using hard or soft woods, chipboard and other tough or treated materials. Hardened steel with triple ceramic coating. For Exterior and Interior Wood Framing, Decks, Rails, Porches, Walls, Floors, Lateral Bracing, Fencing, Siding and Roofing, Laminating Beams, Girders and Posts, Concrete Forms, General Construction, Remodeling and Repair

FEATURES

• • Heat-treated hardened steel for high tensile strength and high shear strength
  • Triple layer ACQ compatible bronze coating for exterior or interior use
  • Wax coating enhances performance, reducing the torque for a smoother drive
  • Deep six-lobe star drive recess reduces cam-out end load
  • Handles 2X the torque as Phillips or Square Drive while extending the life of the bit
  • Under-head cutting nibs to aid in self countersinking
  • Aggressive knurl enlarges hole to reduce splitting and drag to help draw lumber together
  • V-Cut notches on threads to cut fibers for easier insertion at lower torque
  • Type 17 tip for faster precise starts which eliminate "walking" and provides easier insertion without pre-drilling
  • Aggressive thread for greater withdrawal strength