6920508: ProFIT 0029075 Nail, Fluted Concrete Nails, 3D, 1-1/4 in L, Steel, Brite, Flat Head, Fluted Shank, 5 lb

Masonry nails are hardened nails designed to be driven into concrete or the mortar used to hold together bricks or cement blocks. This rigidity also lends masonry nails to a wide variety of installations ranging from attaching plywood subfloor to securing carpet tack strips.

• Mechanically deformed spiral shank provides better penetration and greater holding power
• Hardened steel is heated to extreme temperatures and cooled down quickly producing very hard steel that can be used with hard materials such as concrete and masonry