What Are Carriage Bolts and Their Common Applications?

Carriage bolts, also known as coach bolts, are a staple in construction and woodworking projects. Recognizable by their domed or countersunk heads and square necks, these fasteners are designed to provide a secure and durable hold. Made from materials such as stainless steel, zinc-plated steel, or carbon steel, carriage bolts come in various sizes to suit different requirements.

Key Features of Carriage Bolts

1. Domed Head: Ensures a smooth finish, preventing snagging or damage to nearby materials.

2. Square Neck: This feature locks the bolt in place, preventing rotation during tightening.

3. Corrosion Resistance: Stainless steel options are ideal for outdoor or moisture-prone environments.

Applications

- Woodworking: Carriage bolts are often used to join wooden structures like fences, decks, and furniture.

- Metal Connections: Ideal for metal-to-wood applications, such as securing machinery or automotive parts.

- Construction Projects: Used in structural elements like bridges and buildings due to their strength and reliability.

Installation Tips

When using carriage bolts:

- Drill a hole matching the square neck's size to ensure a snug fit.

- Use a wrench to tighten the nut on the threaded end while the square neck grips the material.

Carriage bolts offer both functionality and aesthetic appeal, making them a versatile choice for professionals and DIY enthusiasts alike.

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