Galvanized fasteners: Galvanizing is the most common treatment for metal fasteners used outdoors. But there are differences in the methods and materials used in galvanizing. The best process is hot-dip galvanizing, in which the fastener is dipped in molten zinc. Hot-dipped galvanized nails are best for most decks.
Stainless steel fasteners are extremely resistant to degradation. Use them near salt water or other regularly wet or corrosive conditions.
Aluminum fasteners are not recommended for use on decks.
Continued on page 2: Features to Consider