SPAX 5/16 in. x 4 in. Powerlag Hex Drive Washer Head Zinc Coated Lag Screw (50 per Box)

Discover the SPAX Advantage. This German engineered/American manufactured SPAX 5/16 x 4 in. Hex Washer Head Zinc 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 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. Do it Once, Do it Right with SPAX.