BOSTITCH C8P90BDG Thickcoat Round Head 2-1/2-Inch by .090-Inch by 15 Degree Wire Collated Coil Siding Nail (3,600 per Box) Go to amazon.com Related posts Thing need consider when find bostich gas finish nailer? Feature2 1/2" x .090Smooth ShankThickcoat Galvanized Finish3600 Nails Per BoxFor Use in the Bostitch N66C-1 Industrial Siding Nailer DescriptionInformation on nail compatibility is available online at www.bostitch.com.