Taken from another web site:
<font color="purple"> Can I use the same metal fasteners used for CCA lumber?</font>
The chemicals used in ACQ will corrode ordinary galvanized fasteners, therefore special consideration must be taken when working with ACQ lumber. Hot dipped or stainless steel fasteners MUST be used with ACQ.
The two most important things to remember when selecting deck fasteners, framing nails, decking nails or screws are: (1) holding capacity, and (2) resistance to corrosion. Using the wrong fasteners can compromise the appearance, longevity, and safety of an outdoor project.
Many fasteners traditionally used with treated lumber are no longer recommended for this application. Dacrotized, electroplated, brass, and aluminum fasteners should not be used in treated lumber when the appearance of rust or the likelihood of corrosion is unacceptable.
Hot Dipped Galvanized - Fasteners galvanized to meet ASTM A 153 class D are acceptable for use with treated lumber. It is important to point out that galvanized fasteners are rust-resistant and not rustproof; there is no guarantee that these fasteners will remain rust-free.
PrimeGuard +10-Coated – This is a patented coating that carries a 10-year guarantee against rust and corrosion when used with treated lumber. For maximum performance we suggest PrimeGuard Plus Stainless Steel or PrimeGuard Plus coa
ted fasteners. PrimeGuard Plus Exterior Fasteners are a complete line of premium fasteners for all outdoor projects, and available at most Sutherlands retail locations. All PrimeGuard Plus fasteners are guaranteed not to rust or corrode.
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