Specialty siding nails perform best with redwood or other wood sidings.
These nails have smaller sinkerheads with waffling to hold finishes. Siding nails also have thin ringed shanks for extra holding power and blunt tips to reduce splitting. These nails are available in either double, hot-dipped galvanized or stainless steel versions, and they can be ordered to match the color of the siding. When using non-wood sheathing products, such as foam insulation, longer nails are required.