
Full Answer
How to contact Simpson Strong Tie?
Can you replace a Simpson Strong Tie fastener?
Does Simpson Strong Tie use CCA C?

What is the difference between Zmax and galvanized?
ZMAX® is a thicker coating (galvanized per ASTM A653 with a G185 coating) than the standard hot-dip galvanized coating (galvanized per ASTM A653 with a G90 coating). This thicker coating is available on select Simpson Strong-Tie connectors.
What is the difference between G90 and G185 galvanized?
Zinc coating is specified as the total weight on both sides of the sheet steel, measured in ounces per square foot (oz/ft2). For example, G90 means that there are 0.90 oz/ft2; G185 has 1.85 oz/ft2 and would last about two times longer than G90.
What kind of bolts should I use for pressure-treated wood?
Fasteners for preservative-treated wood shall be of hot dipped zinc-coated galvanized steel, stainless steel, silicon bronze or copper. Coating types and weights for connectors in contact with preservative-treated wood shall be in accordance with the connector manufacturer's recommendations.
What are the best screws to use with treated lumber?
Galvanized, ceramic coated, or stainless steel screws are the best corrosion-resistant fasteners for pressure-treated cedar or redwood.
How long will a galvanized G40 G60 G90 coating last?
documentation included the information that a G40 coating has a minimum thickness of 9.5 microns of zinc on each surface. The life expectancy of this material would therefore be at least 95 years (compared to 140 years for the G60 coating).
Which is better triple zinc or galvanized?
The big difference is thickness: zinc plating is normally 0.2 mils thick. Hot dip galvanizing might be 1.0 mil thick – you get over 5 times the protection with galvanizing.
What is the best thing to put on pressure treated wood?
For optimum results, first treat the wood with a paintable water-repellent sealer/preservative. After the floor dries, a primer and two topcoats of porch and deck enamel should be applied. Porch enamel is especially formulated to resist abrasion and wear.
Can I screw wet pressure treated wood?
Yes, let it dry. Working with wet treated wood is a very bad idea unless you like shrinkage, cracks, gaps, squeaks, etc. Let your framing and decking dry out first.
Do I need a special blade to cut pressure treated wood?
Pressure-treated lumber has chemicals driven into it to make it more durable and less likely to get damaged by water, mold, or insect infestation. This type of lumber can also be used as a fire retardant. Since this is a special type of wood, you'll need a special blade to cut it.
How deep should deck screws go into the joists?
A common rule of thumb is that a screw needs to go at least halfway into the wood beneath the piece you are attaching. But when attaching deck boards into joists, a 2.5” deck screw is usually long enough since over half the screw is buried in the joist.
Can Rock on screws be used with treated lumber?
No, Rock-On and Backer-On screws are not approved for use in treated lumber.
What type of nails should be used with pressure treated lumber?
The manufacturers of ACQ, CA, ACZA and CCA and the treated wood industry are all recommending hot-dipped galvanized nails and stainless steel nails and screws with their treated wood products.
What does galvanized G90 mean?
Grade Summary: Galvanized G90 is a cold rolled steel sheet that is hot dip coated with a durable protective coating of zinc. This material is intended for uses where corrosion is a consideration and where simple bending or moderate forming is involved.
What is G185 coating?
G185 is also known as “triple zinc,” or TZ. Hot-Dip Galvanized (HDG)G90 and G185 products are all “hot-dipped” galvanized, but the term hot-dipped galvanized has come to mean steel fasteners and connectors that are dipped after fabrication.
What is G90 thickness?
0.9 oz/ft2The designation G90 is simply a coating thickness of 0.9 oz/ft2 as specified in A653 and is equivalent to 0.45 oz/ft2 or about 0.76 mils per side (it is important to state per side because the oz/ft2 method takes into consideration the coating thickness on both sides of the steel, such as in the case of sheet steel).
Is G90 better than G60?
G90 galvanized steel has a longer service life than G60, G40, and G30 galvanized steel, because G90 galvanized steel has a heavier coating weight of zinc applied to it at 0.90 oz/ft^2 as opposed to G60 galvanized steel at . 060 ox/ft^2 and so on.
How to contact Simpson Strong Tie?
Simpson Strong-Tie has a broad selection of these products. Call factory for availability at 1-800-999-5099, view our updated list of corrosion-resistant products online.
Can you replace a Simpson Strong Tie fastener?
If your fasteners, connectors, or other items in contact with the treated wood do not follow the treated wood industry recommendations and/or Simpson Strong-Tie's recommendations then you should seriously consider replacing them. A local professional civil or structural engineer should be used to provide the necessary guidance when replacing these types of structural items.
Does Simpson Strong Tie use CCA C?
Simpson Strong-Tie first became aware of some CCA-C alternatives being used when we received reports of increased connector and fastener corrosion when installed with some treated woods. These reports led us to explore the phenomena and expand our corrosion warning in our catalog to include specific language related to treated wood.
