[Features] ● Earthquake resistance performance can be improved and the wall magnification can be increased by 5x simply by screwing to plywood. ● Sharp drill point. It does not apply excessive force to the wood, and even hard wood can be fastened without pilot holes. ●Can be easily installed with an impact driver. ●Because it is harder than a nail, it has high rigidity, and since it is more supple than a tapping screw, it exerts its tenacity.The head diameter (Φ8.5), which is larger than that of a nail, prevents it from slipping through plywood, and greatly improves the maximum strength. ●Excellent corrosion resistance and environment-friendly surface treatment.