Hillman 42056 Nail, Concrete Nails, 4D, 1-1/2 in L, Steel, Tempered Hardened, Flat Head, Fluted Shank, 6 oz

These masonry nails are heat-treated to give them extra strength. Use them to attach wood to masonry. The fluted shank provides good holding power. Do not use in treated lumber or where corrosion is a concern.

Features:

• Attach wood to concrete or masonry
• Hardened fluted shank provides strong holding power and drives fast