Flat-bottom head that won’t split the surface KTX square driver for solid driver engagement Protec-Kote™ provides strong protection against the elements Case-hardened steel means no bending or breaking Self-tapping for faster, easier driving Neutral color blends in with most decks These high-quality decking screws are perfect for use with the Kreg Deck Jig™ or as a general fastener for a wide variety of deck projects. Protec-Kote™ features three anti-corrosion layers chemically-combined to provide strong protection against rust and corrosion in many common outdoor applications. Perfect for ACQ-treated lumber.