Discover the SPAX Advantage. This German engineered SPAX 5/16 in. x 3 in. Hex Washer Head HCR PowerLag screw offers a premium quality fastening solution to help ensure professional results in less time than inferior imported screws. Say Good Bye to your father’s traditional lag. SPAX PowerLags offer superior installation performance and durability over traditional lag screws and carriage bolts for structural wood construction. Made of carbon steel and coated for long term durability to ensure your project endures. Do it Once, Do it Right with SPAX.
- 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
- Trend setting low profile built-on washer head design offers a contemporary and sleek finished installation, excellent draw down strength without the need for a separate washer delivers superior clamping ability and an easier installation
- High Corrosive Resistant (HCR) coating makes these screws ideal for use in treated lumber and exterior applications
- Heat treated grade 5 durability, subjecting the screw to heat treating gives greater strength and reduces breakage