Porta-Nails 47592 20 Gauge 1-Inch Staples (5,000 per Box) Use with the PNI 475 Twin Trigger Flooring Stapler 5,000 pack covers 1500 sq ft of 3-1/2 In. Flooring Galvanized to resist corrosion Used for 1/4 In. To 7/16 In. Flooring Works with other popular brands of 20 ga Staplers requiring a # 97 wire