Tacwise 140 3/8-Inch Galvanized Staples for Hand Tackers/Hammer Tackers, Box of 2000 (0347) Flat wire, professional 140 Type galvanized staples (same as T50, G11 type staples) 2,000 staples per box, 3/8 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