Daggerz™ brand deck screws are high quality fasteners for wood to wood exterior applications. The coarse threads allows for more material to sit between the threads as the screw is being installed. This deck screw features a bugle head that countersinks flush into softer wood materials. The Phillips drive offers a self centering feature. Additionally, the Dacromet coating passes the 500 hour salt spray test that provides a longer lifespan to the screw.