Hot-dipped galvanized fasteners (meeting ASTM A 153) and connectors (ASTM A 653 Class G185 sheet), or better, are recommended.
For Permanent Wood Foundations and corrosive environments, such as areas with saltwater spray, use 304 or 316 stainless steel. Aluminum should not be used in direct contact with this wood, unless an adequate physical barrier separates the aluminum from the wood or the manufacturer ensures the performance of the aluminum product.
For indoor applications, while galvanized fasteners are preferable, the use of nongalvanized nails or screws of sizes and types approved by the Model Code is acceptable when attaching joists, studs or other framing to Wolmanized® sill plate, provided the wood will remain dry in service, protected from weather and water. Likewise, the use of standard galvanized strapping, anchor plates, or mild steel anchor bolts 1/2" diameter and larger is acceptable for fastening Wolmanized® wood to foundations, provided that the wood will remain dry in service, protected from the weather and water.
Additional information on the corrosion of fasteners and connectors used with alternative pressure treated wood:
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Tech Note (68K PDF) |
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Update on White Paper (120K PDF) |
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