These Hikoki nails are specifically designed for use with the NC1840DA cordless concrete nailer, allowing you to fasten materials securely into hard surfaces. They are engineered for applications involving both concrete and steel, providing a reliable hold in demanding construction environments. Each nail features a 3.0 mm diameter and a length of 22 mm to suit specific material thicknesses. They come in bulk packs of 1000 pieces, ensuring you have a sufficient supply for larger projects without needing frequent replacements.