These finish nails are constructed from 15 gauge steel. They apply to fine woodworking, finish and trim applications. 15 gauge "FN" style angled finish nails have a coated finish with a chisel pointUse with Bostitch tools N59FN, N60FN, N62FN, N62FNK-2, BTFP72156Zinc coating with minimum zinc thickness of 1.2 mil for superior corrosion resistanceRust resistant chromate coating for further protection against corrosionPolymer coating increases withdrawal performance1.5 in. size