Carriage Bolts

South Coast Fasteners, Inc. supplies carriage bolts designed for secure fastening with a smooth, finished appearance. Featuring a round head and square neck that locks into wood or metal to prevent turning during installation, carriage bolts are widely used in wood construction, furniture assembly, decking, and light structural work. Their clean look and secure hold make them a trusted option for both functional and visible applications.

Get Superior-Quality Fasteners at Competitive Prices

Use the options below to find the fasteners you need in the quantities required for your application. Questions? Contact us today, and our team will gladly assist you in finding the best fastening solutions for your requirements. With South Coast Fasteners, you can count on helpful support, competitive pricing, and top-quality products for all your fastener requirements.

Material Options

South Coast Fasteners stocks carriage bolts in material grades selected to balance cost, durability, and corrosion protection for a range of indoor and outdoor applications.

A307 Grade A

These low carbon steel bolts are a dependable option for fastening into wood, soft metal, or composite materials. A307 Grade A is commonly used in residential framing, fence posts, and general-purpose structures where moderate strength and affordability are both important. These bolts are easy to install and readily available in a wide range of lengths.

Grade 2

Often chosen for light-duty or non-critical connections, Grade 2 carriage bolts are the most economical option for general fastening. They are popular in agricultural equipment, shelving, crate assembly, and similar projects that do not require high load capacity or resistance to vibration.

Grade 5

These medium carbon steel bolts are heat-treated for added strength and are used in heavier-duty connections where tension or vibration resistance is a factor. Grade 5 carriage bolts are a solid choice for machinery, equipment enclosures, and structural connections where a stronger bolt is needed without stepping into high-alloy options.

Stainless Steel 18-8

This stainless alloy offers strong corrosion resistance, making it ideal for use in outdoor, marine, or high-moisture environments. Stainless steel carriage bolts are commonly used in decks, docks, outdoor furniture, and anything exposed to the elements. The clean finish also makes them a good fit for decorative or visible installs where appearance matters.

Available Finishes

South Coast Fasteners offers carriage bolts in finishes that enhance corrosion resistance, blend with your project’s aesthetic, and provide reliable performance in varied environments.

Black Oxide

A light-duty finish that adds a dark, matte appearance while offering mild corrosion resistance. Black oxide is commonly used in indoor furniture, equipment housing, or decorative applications where visual appeal is a factor and exposure to moisture is limited.

Hot Dip Galvanized

A heavy zinc coating applied for strong corrosion protection, especially in outdoor, marine, or wet environments. Hot dip galvanized carriage bolts are often used in structural wood assemblies, utility builds, or industrial fencing where long-term exposure to the elements is expected.

Plain

Uncoated, raw steel for use in dry indoor environments or projects where the bolts will be painted or finished after installation. Plain finish carriage bolts are straightforward and cost-effective, often used in framing or interior builds where appearance and corrosion are not concerns.

Yellow Zinc Cr+6

This finish provides a bright, golden appearance with enhanced corrosion resistance. Yellow zinc is often used in automotive, equipment assembly, or cabinetry installs where visibility, function, and aesthetics all matter.

Zinc Cr+3

A clean, silver-toned finish that adds dependable corrosion resistance in general environments. Zinc Cr+3 carriage bolts are used in hardware, machinery, and light structural assemblies where protection and appearance are both important.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we understand that carriage bolts need to lock in tight, look clean, and stay reliable across seasons and uses. That is why we stock the sizes, grades, and finishes that builders and installers ask for by name. Whether you are reinforcing heavy timbers or attaching metal hardware to wood, we have the bolt to match your job. We ship fast, keep it simple, and back every order with experience that helps you finish the work the right way.

Order Carriage Bolts Online Today

Ordering carriage bolts through South Coast Fasteners is straightforward, fast, and backed by a team that knows what works. Whether you need a stainless option for an outdoor build or a bulk pack of galvanized bolts for site installation, we are ready to help. Browse online, request pricing, or reach out for product guidance. We will make sure you get what fits.