Grip-Rite GRA1138 Hammer Tacker 3/8-Inch by 18 Gauge 3/8-Inch Crown Galvanized Staple (5,000 per Box)
Hammer Tacker Staples - A11 Hammer Tacker Staples - Primary applications include insulation, house wrap, vapor barriers and roofing felt. Designed for use in all Rapid-11 / Arrow T50 style hammer tackers.  Grip-Rite® brand fasteners from PrimeSource Building Products, Inc.