Carriage Bolts

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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 wa