Carriage Bolts

Carriage Bolts for Marine, Construction, & Other Industrial Applications

Carriage bolts show up anywhere you need a strong hold and a low profile head that won’t snag. In marine builds, stainless options are popular for docks, boat lifts, and hardware exposed to spray or humidity. In construction, you’ll see them in timber connections, guardrails, and outdoor assemblies where the square neck can lock into wood.

In maintenance shops and fabrication work, you’ll see carriage bolts holding fixtures, rack frames, and brackets in place. The rounded head is smooth on the outside, so it’s less likely to catch sleeves, wiring, or hands near moving parts. If you keep a bin of bolts on the shelf for repeat jobs, ordering bulk bolts helps you avoid last-minute reorders when the same sizes get used again and again.

More Finish Options for Carriage Bolts

Finish matters because it affects corrosion resistance, appearance, and how the bolt behaves outdoors. Zinc-plated steel is a common pick for indoor and dry locations. Hot dip galvanized is often chosen for exterior wood structures and treated lumber. Black oxide offers a darker look for controlled environments. Stainless helps in damp, coastal, or washdown areas. If you’re pricing out bulk carriage bolts for sale, comparing finishes is one of the fastest ways to narrow the right match.

Ribbed Neck Carriage Bolts

Ribbed neck carriage bolts add ridges under the head that help bite into wood and resist spinning during tightening, which is helpful when the square shoulder alone might not lock in as well, like in softer lumber or slightly oversized holes. Ribbed neck styles are also nice for repair work where the original hole has a bit of wear and you still want a secure grab.

Metric Carriage Bolts

Metric carriage bolts follow metric diameters and thread pitches, making them a better fit for equipment, imported assemblies, and drawings built around ISO sizing. They’re a good call when you need consistent matching with metric nuts, washers, and tools already in your shop. If your project specs list M8, M10, or M12, sticking with metric avoids the headache of mixed sizing.

Track Carriage Bolts

Track carriage bolts are made for applications like track systems, rails, and slotted assemblies where a stable seat and reliable clamping force matter. The design supports alignment and helps keep parts from shifting after tightening. They’re used on equipment frames, industrial guides, and mounting systems where movement and vibration can loosen lesser hardware over time.

Timber Carriage Bolts

Timber carriage bolts are commonly used in heavy wood construction like bridges, retaining walls, pole barns, and large outdoor frames. They’re built to handle thicker members and higher loads, and they pair well with washers to spread pressure across the wood surface. When you’re fastening big lumber, getting the right length and diameter makes a big difference in long-term strength.

Why Choose Fastener SuperStore to Be Your Supplier for Carriage Bolts and Other Fasteners?

Fastener SuperStore is built for people who already know what they need and want a quick path to the right part. The category filters and product paths help you narrow material, grade, thread type, and finish without guesswork.

As a distributor of fasteners, we support everything from small maintenance jobs to large reorders, with clear options for wholesale bolts when you’re stocking a shop. You can also coordinate matching hardware so sizes and materials stay consistent across builds.

If you’re shopping carriage bolts wholesale for an ongoing project, it’s easier to keep standards tight when the same supplier carries the related pieces you need. You’ll also find size and packaging choices that make ordering simpler, from small runs to bulk, plus reliable shipping and support when you need to confirm specs fast.