The R4 Multi-Purpose Framing and Decking Screws allows you to confidently perform your job. The W-Cut and Star Drive improve the speed and ease of installation while the CEE Thread reduces splitting thus eliminating rework. Climatek corrosion resistant coating is ground contact lumber approved. W-Cut - Low installation torque allows for fast driving and ease of installStar Drive - Eliminates stripping for improved productivityCEE Thread - Enlarges hole to reduce splitting, thus eliminating reworkZip-Tip - Eliminates pre-drilling and one step installationCutting Teeth - Cuts wood fiber and provides flush seatingESR-3201 Approved - Approved for structural applications