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Galvanized Fasteners

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Durable Galvanized Fasteners for Structural and Outdoor Marine Use

Galvanized steel is the workhorse of marine construction, prized for its excellent corrosion resistance in non-stainless, heavy-duty applications. Unlike stainless steel, which can be susceptible to crevice corrosion, hot-dip galvanizing creates a thick zinc layer that protects the steel base from rust, making galvanized fasteners ideal for harsh outdoor environments. At Fawcett Boat Supplies, we stock a complete range of galvanized fasteners perfect for dock building, lumber framing, and structural attachments.

Heavy-Duty Applications and Superior Protection

Our galvanized threaded fasteners and hardware are primarily used where structural strength is paramount, and the components are exposed to the elements, but not necessarily submerged in saltwater continuously. Common uses include:

  • Dock and Pier Construction: We provide everything from robust galvanized steel bolts to bulk galvanized screws and bolts essential for securing pilings and deck boards.
  • Structural Projects: Heavy-duty applications, such as mounting supports for treehouse attachment bolts or other large outdoor structures.
  • Marine Timber: Specializing in timber bolts and nuts, including specialized galvanized timber bolts and timber bolts galvanized, designed to provide maximum clamping force on heavy wood members without crushing the wood fibers.

The hot-dip process ensures every surface of the galvanized fastener is coated, guaranteeing long-term protection against humidity, rain, and spray.

Comprehensive Galvanized Hardware

We offer a full complement of galvanized hardware to ensure your structure is secure and compliant with all building codes:

  • Galvanized Bolts: Our selection includes carriage bolts, lag bolts, and machine bolts—all with matching galvanized nuts for complete, anti-corrosion assemblies.
  • Specialty Washers: The zinc coating on our galvanized washers and extra-thick dock washer selection ensures a lasting barrier between the steel and the wood, preventing corrosion that can stain or damage your lumber.
  • Specific Fasteners: We supply galvanized screws in various lengths and gauges for deck board attachment and other medium-duty needs. We also stock unique items like the geyser fastener style of hardware used in heavy construction applications.

We also offer specialized apparel marine fasteners and small fasteners trance boat components, which are typically smaller, galvanized snap hardware used for canvas and boat covers.

Choose Fawcett Boat Supplies for reliable, high-strength galvanized hardware designed to last in the toughest coastal conditions.

Frequently Asked Questions

What is the main advantage of galvanized fasteners over standard steel?

The main advantage is the corrosion protection provided by the zinc layer. The galvanizing process creates a sacrificial coating; the zinc layer corrodes before the underlying steel, dramatically extending the life of the galvanized steel bolts and galvanized threaded fasteners in outdoor and damp environments.

What is a timber bolt, and where is it used?

A timber bolt (also known as a dome-head bolt) is a large bolt with a smooth, shallow domed head and a square neck beneath it. It's used to secure large wood members, like deck framing or dock supports. The galvanized timber bolts are designed to be hammered in, which helps the square neck lock into the wood, preventing rotation while tightening the nut.

Why should I use a dock washer with galvanized bolts?

A dock washer is an extra-large, often rectangular or square, galvanized washer. When used with galvanized nuts and bolts, it increases the bearing surface area, which is essential for soft materials like lumber. This prevents the nut or bolt head from sinking into or crushing the wood under high tension.

Do you offer bulk options for construction projects?

Yes, for large-scale projects like commercial dock construction or significant repairs, we offer bulk galvanized screws and bolts to ensure you have consistent, high-quality material for the entire job.

Is galvanized steel suitable for permanent immersion in saltwater?

While highly resistant to atmospheric corrosion, galvanized steel is generally not recommended for permanent immersion in saltwater, where the zinc coating will be depleted quickly. For applications constantly submerged, bronze or 316 stainless steel is typically the superior choice, depending on the material it's being fastened to.

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