Heat-treated hardened steel for high tensile strength and high shear strength
• Deep Robertson® Drive Recess reduces cam-out end load. Handles maximum torque with The Original Robertson® Drive
• Self countersinking nibs under the head to ensure a clean finish
• Aggressive knurl enlarges hole to reduce splitting and drag to help draw lumber together
• Patented Aster® thread form on threads to cut fibers for easier engagement at lower torque. Provides quick and easy engagement without pre-drilling. Aggressive thread for great withdrawal strength
• Structural Wood Screw - Backed by certified independent testing (TER 1911-01)