Duo Fast CP5008C 20 Gauge Galvanized Staples 1/2-Inch Crown x 1/4-Inch Length, 1000 Pack High quality galvanized staple Excellent strip integrity provides superior holding power Chisel Point Staple Box contains 1000 galvanized staples Can be used in Duo-Fast HT550 Hammer Tacker the CS5000 Compression Stapler the SureShot 5020DLAF Stapler and EWC5018A Electric Stapler