Tacwise 140 5/16-Inch Galvanized Staples for Hand Tackers/Hammer Tackers, Box of 2000 (0346) Flat wire, professional 140 Type galvanized staples (same as T50, G11 type staples) 2,000 staples per box, 5/16 inch For use with Tacwise Z1-140, Z3-140 and Z3-140L Hand Tacker/Staple Guns Compatible with Arrow T50 and Stanley G11 hand tackers Ideal for securing underlay, plastic sheeting and roofing applications