SENCO FASTENING SYSTEMS KC28APBX 2.5K 3-1/4x.131 Nail 3-1/4" Length x 131", Bright Finish, 34 Degree, Clipped Head, Paper Tape, Collation Framing Nail Standard tensile, half strip, sencote coating Comes with 2,500 to a pack Fewer tool jams when using Serco nails compared to competitive products Applications include framing, trusses, subfloors, sheathing, decking, siding, fencing, pallets. crate assembly and wood to concrete