1-1/2" Length, Galvanized, Medium Head, 18 Gauge, Straight Collation, Brad Nail. Comes with 5,000 to a pack. Fewer tool jams when using Serco nails compared to competitive products. Highest withdrawal value for fasteners. Comes in a straight strip. Applications include light and medium-duty jobs, such as cabinet face frames, decorative trim, scribe moldings and picture frames.