Carriage Bolts
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- The square neck of these carriage screws prevent the bolt from turning once fastened, offering a stable way to fasten metal-to-wood and wood-to-wood.
- Ideal for professional or DIY fastening projects and provides some resistance to corrosion in interior or exterior environments.
starting at$0.10Ships Jun 18 when you order nowstarting at$0.10Ships Jun 18 when you order now -
- The square neck of these carriage screws prevent the bolt from turning once fastened, offering a stable way to fasten metal-to-wood and wood-to-wood.
- Ideal for professional or DIY fastening projects where corrosion resistance is necessary, like exterior environments.
starting at$0.14Ships Jun 18 when you order nowstarting at$0.14Ships Jun 18 when you order now -
- The square neck of these carriage screws prevent the bolt from turning once fastened, offering a stable way to fasten metal-to-wood and wood-to-wood.
- Ideal for professional or DIY fastening projects where maximum corrosion resistance is necessary, like exterior or marine environments.
starting at$0.17Ships Jun 18 when you order nowstarting at$0.17Ships Jun 18 when you order now -
- Common Applications: Marine projects, coastal areas, outdoor use, and animal confinements, or where heavy corrosion resistance is necessary.
- For Use With: Stainless steel hex bolts, stainless steel threaded rod, or other stainless steel fasteners.
starting at$0.07Ships Jun 18 when you order nowstarting at$0.07Ships Jun 18 when you order now -
starting at$0.02Ships Jun 18 when you order nowstarting at$0.02Ships Jun 18 when you order now
Shop Carriage Bolts for Wood & Metal Projects
US Cargo Control is your go-to source for carriage bolts built to last. Whether you're securing beams for a backyard deck, assembling a fencing project, or outfitting structural components in industrial builds our carriage bolts deliver strength you can trust. Designed for clean, tamper-resistant fastening, carriage bolts feature a round head and square neck that locks into place, making them ideal for wood-to-wood and wood-to-metal applications.
We offer a wide variety of sizes and finishes, including hot dip galvanized for superior corrosion resistance, 18-8 stainless steel for general-purpose use, and 316 stainless steel for extreme environments like coastal or chemical applications.
Why Choose Carriage Bolts?
These bolts are engineered for durability and smooth finishes. The domed head provides a clean look with no exposed drive, while the square neck locks into wood or metal to prevent spin during installation. They're widely used for:
- Deck building and fencing
- Timber framing and outdoor structures
- Furniture and playground assembly
- Securing heavy machinery or equipment bases
Built for Strength. Designed for Longevity.
Our carriage bolts are manufactured to handle demanding applications, from structural lumber to high-vibration machinery. With options in both coarse and fine threads, and a variety of lengths and diameters, you’ll find exactly what you need for code-compliant, load-bearing, or aesthetic installations.
Expert Tip:
Pair your bolts with our full line of nuts and washers for added strength and surface protection, especially on softer wood or weather-exposed builds.
Common Names for Carriage Bolts
Also known as coach bolts, round head square neck bolts, cup head bolts, or mushroom head bolts, they all refer to the same trusted fastening solution with a flush, clean finish.
How to Install a Carriage Bolt
Drill a hole through your material, insert the bolt from the rounded-head side, and secure with a washer and nut on the opposite side. As you tighten, the square neck pulls into the material, locking the bolt in place and preventing spin. No second tool needed for the head.
Get the Job Done with US Cargo Control
Every job demands reliability. That’s why professionals and DIYers alike choose US Cargo Control. We stock a complete range of carriage bolt sizes, ship fast, and offer expert support if you need help picking the right specs.
Questions? Give us a call! Our product specialists are ready to help you find the bolt that fits your build.