This Grip-Rite 10D 3 in. Masonry Cut Tempered Hardened Steel Nail is ideal for use in a variety of applications. The flat head and tempered hardened steel construction make it perfect for use in masonry and other applications where a strong grip is required. The nail is also coated to resist corrosion and is easy to drive into a variety of materials. This nail is perfect for a variety of applications and is sure to provide a strong grip.