Grip-Rite 4D 1.5 in. Masonry Tempered Hardened Steel Nail Flat Head 50 lb

Grip-Rite fluted masonry nails are used for attaching furring strips and floor plates to uncured concrete. Vertical thread for driving into cinder block, mortar joints or other relatively soft masonry to minimize cracking and provide high holding power. Heat treated process to increase resistance to bending when driven into hardwood or masonry.