Additional Details ------------------------------ Product description: The Arrow Fastener #856 3/8 in. staple is designed to fit Duo-Fast and Craftsman manual and electric staplers. When stapling make sure 3/16 in. of the staple is inside the base material. For use in interior and exterior jobs, such as roofing felt, house wrap, insulation, weather-stripping, wire mesh and carpeting.; ; Brand Name: Arrow Style or Series: #856 Crown Width: 1/2 in. Length: 3/8 in. Gauge: 18 Ga. Crown Type: Wide Crown Product Type: Standard Staples Number in Package: 1250 pk Color: Gray Packaging Type: Boxed Material: Steel Coating: Galvanized