Big Timber Fasteners CTX™ CTX155-100 #15 x 5" Construction Lag Screws, T30 Star Drive, Bronze Coated, 100/Box

Compatible with treated lumber, but areas within one mile of saltwater, near swimming pools, exposure to corrosive chemicals or other areas where corrosion is more likely to occur, such as livestock confinement, using the proper size, grade and type of Big Timber Stainless Steel Fasteners should be considered if available. For Log Construction, Timber Frames, Laminated Beams, Girders, Ledger Boards, Stair Rails, Deck Posts, Fencing, Sip Panels, Pole Barns

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 twice the torque as Phillips or Square Drive while extending the life of the bit
  • Built-in washer head for increased pull through strength
  • 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