Hot Dipped Galvanized Square Dock Washers
What are hot dipped galvanized square dock washers? Hot dipped galvanized square dock washers are oversized, thick square washers coated by dipping in molten zinc for a durable corrosion-resistant layer. Built for dock and marine timber construction, the broad, stiff square body spreads load, resists rotation, and prevents pull-through while the galvanized coating stands up to water and weather.
Why hot dipped galvanized for square dock washers?
Square dock washers are bolted into piers, docks, and waterfront timber exposed to spray, moisture, and weather, so corrosion resistance is essential. Hot dip galvanizing immerses the washer in molten zinc for a much thicker coating than electroplating, giving lasting protection against rust in marine environments. The oversized, thick square body spreads clamping load over a broad area, its flat sides seat against timber grain and resist rotation, and it prevents bolt heads and nuts from pulling into treated wood while resisting cupping under torque. Pair galvanized square dock washers with galvanized timber bolts and lag hardware. For continuous saltwater immersion, stainless offers the highest corrosion resistance.
Why choose hot dipped galvanized square dock washers
- Thick zinc coating: lasting corrosion resistance for marine use.
- Oversized and thick: broad, stiff bearing for structural loads.
- Flat sides: seat against timber and resist rotation.
- Match coating: pairs with galvanized timber hardware.
Common applications for galvanized square dock washers
- Dock and pier framing
- Marine and waterfront timber joints
- Treated-lumber structural connections
- Oversized or weathered bolt holes outdoors
For a round profile, see round dock washers, and browse every option on the main dock washers category.
Hot Dipped Galvanized Square Dock Washers FAQ
Why galvanized for square dock washers?
They are used outdoors near water, so the thick hot dipped galvanized coating gives lasting corrosion resistance against spray, moisture, and weather.
Why choose square over round?
The flat sides seat against timber grain and resist rotation under the fastener, helping the washer stay located while spreading load.
Are these good with treated lumber?
Yes. Treated lumber accelerates corrosion, so hot dipped galvanized square dock washers and matching hardware are a standard marine choice.