Screw #10 x x 1-1/2 in. HCR-X T-Star Plus Undercut Interior/Exterior Multi-Purpose Screw (125 Per Box) Head Flat

Check out our Threads!! Our patented thread serration technology allows the screw to be driven faster easier to install and reduces splitting in wood. Let the SPAX FACTOR take some of the hassle out of your next project. No required pre-drilling in wood. Be more efficient on the job by eliminating time consuming steps with self drilling SPAX UNIQUE 4CUT POINT technology. T-Star plus drive provides superior bit engagement. Better bit engagement means quicker installation with less effort. Welcome to the world of one-hand overhead driving. Patented multi-head countersinks the screw head flush in wood Stay Stronger for Longer! Heat Treated Grade 5 Durability. Subjecting the screw to heat treating gives greater strength and reduces breakage. Tested under the tougest scenerios to give you confidence in every connection. Requires a T-20+ bit - included in box Common applications: exterior treated lumber deck board installation outdoor furniture play structures shed construction 2-by framing connections not recommended for cedar or redwood Engineered TER no. 2010-02 - multi-purpose fastener properties report