SPAX® 1/4" x 4-1/2" Grade 5 Yellow Zinc Washer Head Lag Screw

SPAX® Powerlags offer superior installation, performance and durability over traditional lag screws for structural wood construction.
 
Features
Check out our Threads!! Our patented thread technology allows the screw to be driven faster, is easier to install, and reduces splitting in wood. Let SPAX take some of the hassle out of your next project.
Available with HCR Coating for use in exterior/treated lumber.
Patented thread serrations eliminate the need for pre-drilling in wood and require up to 40% less driving torque.
T-Star plus head provides superior bit engagement. Better bit engagement means quicker installation with less effort.
Heat Treated Grade 5 Durability. Subjecting the screw to heat treating gives greater strength and reduces breakage.
ICC-ES Code Recognized