“Corrosion resistant” doesn’t mean a finish or material is suitable for all environments. In some cases, galvanized connectors and fasteners are fine. In other cases, stainless steel is the best long-term solution. Simpson Strong-Tie offers a wide range of stainless-steel connectors and fasteners designed to provide a superior level of protection and durability against corrosive environments and materials.
Depending on weather patterns, locations up to 10 miles from the ocean can be considered at risk for salt (chloride) corrosion (check local requirements)
In colder climates, de-icing salt deposits can be greater than the sea-salt deposits found in coastal areas. Road mist and salt-laden dust can carry salts significant distances from roadways, and they remain there throughout the year.
For exterior wood-to-wood or wood-based materials involving Wet Service, Elevated Service, Ocean/Water Front Service and Uncertain Environments prone to chemicals and chlorides, we offer stainless-steel connectors for a variety of building applications, including:
Learn more about general corrosion information.
Even with the protection of stainless-steel connections, structures in corrosive environments can be compromised over time when these connectors are installed with fasteners or anchors that are not stainless steel. Carbon-steel fasteners and anchors with coatings such as hot-dip galvanization will corrode faster than the stainless-steel connectors, creating a weak link that could eventually lead to repairs or failure. Likewise, fasteners or anchors made from lower grades of stainless steel, such as types 304/305 (aka "18-8 stainless"), are also not recommended for use with Simpson Strong-Tie type 316 stainless-steel connectors.
There are a wide range of available fastener materials and coatings that possess varying levels of corrosion resistance and it is important to identify the right one for the intended environment.
When it comes to anchorage, selecting a material that can withstand the environment is critical. Proper protection comes from materials that are capable of resisting corrosion while maintaining their strength.
Metal connectors, fasteners and anchors can corrode and lose carrying capacity when installed in corrosive environments or when installed in contact with corrosive materials. Learn more about common corrosion issues.