Mechanically galvanized screws are generally suitable for decks and other. by adding a polymer coating (often pigmented) on top of the galvanized coating.. When driving screws in hard materials, such as PT lumber or hardwoods, opt for a .
Choosing deck fasteners and hardware, such as joist hangers, used to be pretty. After 2004, all that changed with the phase out of CCA-treated lumber and the. . Stainless steel is the best choice near fresh or salt water, in any damp location
And when water contacts ACQ- or CA-treated wood, it lifts copper ions from the. Figure 3. Shiny, electroplated fasteners (top, in photo) don't hold up to the .
If you're using pressure-treated wood for your frame, plan on either. Products also offers a top-of-the-line high-quality stainless steel deck screw that come with
Shop our selection of Wood Deck Screw, Deck Screws in the Lumber & Composites. Your Selection: Fastener Type: Wood Deck Screw. Sort By: Top Sellers.
Most rot-resistant pressure-treated lumber sold for homeowner use relies on two copper-based wood preservatives — alkaline copper quaternary and copper .