SPAX 4571010801005 5/16 x 4 Hex Drive Washer Head Zinc Powerlag Screw (50 Pieces per Box)

The SPAX Factor - For the craftsman that concentrates on the details, We Work for You. For the Pro that puts quality first, we help you create stronger connections, enhance performance and improve results when your reputation is on the line. Say goodbye 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. U.S made SPAX is your trusted partner for your fastening needs. Bit included in box. Do it Once, Do it Right with SPAX.

• Check out our Threads! Our patented thread serration technology allows the screw to be driven faster, reduces splitting in wood, and reduces driving torque by 40 percent. Let the SPAX FACTOR take some of the hassle out of your next project.
• The ideal replacement for the conventional lag. IRC/IBC Code Compliant: TER-No. 1912-07
• Engineered and Manufactured in the USA
• SPAX 5/16-in. Hex PowerLags require a 7/16-in. Hex Driver
• Common applications: Landscaping timber, deck ledger attachment, fencing, exterior treated lumber, structural wood to wood connections