All-purpose exterior use weathered finish wood screw. Ideal for exterior wood applications. Type 17 thread cuts fast through wood. Corrosion-resistant finish. Coarse thread with wax lube. ACQ (Alkaline Copper Quaternary) approved. For use with DuraSpin fastening system. May also be used with Makita, Milwaukee, Pam, and Hilti collated screwdriving systems. 50 screws per strip.