What is a Carriage Bolt?

A carriage bolt, also known as a coach bolt, is a type of fastener with a smooth, rounded, dome-shaped head and a square neck directly beneath it. The square neck locks into the material, typically wood or metal, preventing the bolt from rotating during tightening. Carriage bolts are secured using a nut and washer from the opposite side, providing a neat, flush finish since the head has no slot or recess.

Key Features of a Carriage Bolt:

• Rounded Head: Dome-shaped head for a smooth and attractive finish.
• Square Neck: Prevents spinning during tightening for secure installation.
• Corrosion Resistance: Available in stainless steel, galvanized, or zinc-plated options.
• Variety of Sizes: Comes in multiple diameters and lengths for diverse uses.
• Secure Fastening: Works effectively with washers and nuts for strong connections.

Common Uses:

• Wood-to-wood connections in fences, decks, and furniture.
• Fastening wood to metal components.
• Outdoor projects like landscaping, playgrounds, and outdoor furniture.
• Automotive or machinery where a smooth, rounded head is needed.