Fasteners
 Hot-dipped galvanized, aluminum and stainless steel fasteners
are all corrosion-resistant and can be used
to fasten Western Red Cedar. Other types of
nails are not recommended. They can rust and
disintegrate and react adversely with the
natural preservative oils present in cedar
resulting in unsightly stains and streaks.
Copper nails also react with cedar and should
not be used. Stainless steel nails are the
best choice, especially if trim boards are
to be finished with transparent or semi-transparent
stain. Use No. 304 stainless for general applications
and No. 316 for seacoast exposures.
For best results use splitless fasteners
designed for siding installation. This type
of nail has a thin shank and blunt point
and is available with a ring or spiral shank.
Fastener length should be adequte to provide
a minimum penetration of 1-1/2 inches into
solid wood.
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