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- Heat-treated hardened steel for high tensile strength and high shear strength
- Triple Layer ACQ Compatible Gold Zinc Coating for Exterior or Interior use
- 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
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