Model # GRSSHW516550
Grip-Rite GRSSHW516550 5/16 in. x 5 in. Dual Drive Washer Head Structural Screws are the ideal replacement for lag screws in outdoor construction. With either the included hex bit or T-20 star drive, you'll love how fast these screws self-drill into wood. ICC code stamped into the head for easy inspection, these corrosion resistant screws include a load value chart in each package. Coated with PrimeGuard Plus polymer for guaranteed rust protection through the life of the project.