SPAX 5/16 in. x 4 in. Powerlag Hex Drive Washer Head Zinc Coated Lag Screw (250 per Pail)

The SPAX Factor - For the craftsman that concentrates on the details, We Work for You. For the Pro that puts qualify first, we help you create stronger connections, enhance performance and improve results when your reputation is on the line. Say Good Bye to your fathers 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. U.S made SPAX is your trusted partner for your fastening needs. Do it Once, Do it Right with SPAX.The 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 40% less driving torque.Stay Stronger for Longer! Heat Treated Grade 5 Durability. Subjecting the screw to heat treating gives greater strength and reduces breakage. Tested un...