The BOSTITCH PT-16D131GFH2 3-1/2" X.131" SMOOTH SHANK THICKCOATR SMOOTH SHANK PAPERTAPE NAILS, 2000ct feature an off-set round head to satisfy building code in all regions (ICC-ES-1539 Code Complaint). Constructed of an industrial grade carbon steel alloy, with a polymer coating that facilitates drivability and increases withdrawal performance. THICKCOATR corrosion resistance meets or exceeds hot dipped galvanized ASTM A153 Class D (1oz/ft2) via ICC-EC: ESR1482. These nails fit most 30 to 34 degree paper tape mailers. For use in all pressure treated lumber. Commonly used for: Framing. 2,000 nails.