Deck screws are specially formulated to prevent rust, staining, or streaking in chemically treated wood, including ACQ. However, Duradized screws may underperform if the wood is not properly treated and sealed, as weather exposure and surface breaches can compromise their effectiveness. The reinforced neck allows for increased driving torque, while the screw threads feature a cutting design. This innovative "Sawtooth" thread requires less driving torque and outperforms traditional Type '17' thread cutting screws, reducing splitting and providing greater holding power.