Steelhead N15SS-5M 7/16 in. x 1-1/4 in. 16 Gauge Stainless Steel N-Series Staples 5000/box For Use with Shakes, Shingles, Fencing, Siding, and Lattice Will fit most N-Wire Staplers 16 Gauge 1-1/4-inch x 7/16-inch Stainless Steel Crown Staples