ProFIT 0029095 Nail, Fluted Concrete Nails, 4D, 1-1/2 in L, Steel, Brite, Flat Head, Fluted Shank, 5 lb [SKU: ORG6920516]

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, For attaching floor plates to uncured concrete and furring strips. [QTY/UOM: 1BX / 1BX]