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Carriage Bolts

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Hillman 
1/4-in x 2-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 2-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 3-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
Color: Black Epoxy

Deck Plus 
1/4-in x 2-in Coated Coarse Thread Exterior Carriage Bolt

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4.8
188
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Hillman 
1/4-in x 1-1/4-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 2-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

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4.7
135
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Hillman 
1/4-in x 3-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 1-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 4-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 1-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 3/4-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 1-1/2-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

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4.7
130

Hillman 
1/4-in x 1-1/2-in Stainless Coarse Thread Exterior Carriage Bolt

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4.7
15

Hillman 
1/4-in x 3/4-in Stainless Coarse Thread Exterior Carriage Bolt

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5.0
10
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Hillman 
1/4-in x 4-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

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4.7
135
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Hillman 
1/4-in x 4-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt

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4.7
749
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Hillman 
1/4-in x 2-1/2-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

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4.6
103
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Hillman 
1/4-in x 3-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

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4.5
116
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Hillman 
1/4-in x 1-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

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4.7
132
Color: Black Epoxy

Deck Plus 
1/4-in x 2-1/2-in Coated Coarse Thread Exterior Carriage Bolt

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4.8
188
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Hillman 
1/4-in x 1-in Galvanized Coarse Thread Exterior Carriage Bolt

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4.5
584
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Hillman 
1/4-in x 1-1/2-in Galvanized Coarse Thread Exterior Carriage Bolt

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4.5
584
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Hillman 
1/4-in x 3-in Galvanized Coarse Thread Exterior Carriage Bolt

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4.5
584
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Hillman 
1/4-in x 2-in Galvanized Coarse Thread Exterior Carriage Bolt

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4.5
584

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1/2-in x 8-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

Hillman   1/2-in x 8-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

3/8-in x 12-in Galvanized Coarse Thread Exterior Carriage Bolt 50 -Count

Hillman   3/8-in x 12-in Galvanized Coarse Thread Exterior Carriage Bolt 50 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

3/4-in x 12-in Galvanized Coarse Thread Exterior Carriage Bolt 20 -Count

Hillman   3/4-in x 12-in Galvanized Coarse Thread Exterior Carriage Bolt 20 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

3/8-in x 4-1/2-in Galvanized Coarse Thread Exterior Carriage Bolt 67 -Count

Hillman   3/8-in x 4-1/2-in Galvanized Coarse Thread Exterior Carriage Bolt 67 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

5/8-in x 12-in Galvanized Coarse Thread Exterior Carriage Bolt 25 -Count

Hillman   5/8-in x 12-in Galvanized Coarse Thread Exterior Carriage Bolt 25 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

3/4-in x 10-in Galvanized Coarse Thread Exterior Carriage Bolt 20 -Count

Hillman   3/4-in x 10-in Galvanized Coarse Thread Exterior Carriage Bolt 20 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

3/4-in x 16-in Galvanized Coarse Thread Exterior Carriage Bolt 20 -Count

Hillman   3/4-in x 16-in Galvanized Coarse Thread Exterior Carriage Bolt 20 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

3/8-in x 6-in Coated Coarse Thread Exterior Carriage Bolt

Deck Plus   3/8-in x 6-in Coated Coarse Thread Exterior Carriage Bolt

Mother nature can be tough on your projects. Deck Plus is tougher. Hardware built for results, guaranteed for life.

1/2-in x 6-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

Hillman   1/2-in x 6-in Stainless Coarse Thread Interior/Exterior Carriage Bolt

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

1/2-in x 7-in Coarse Thread Carriage Bolt

Hillman   1/2-in x 7-in Coarse Thread Carriage Bolt

Carriage bolts are designed to fasten a wooden face to either a wood or metal frame. Its flat head is designed to eliminate the need for a washer and provide a semi-flush finish to applications. The square underside of the head is self-locking to eliminate spinning and the need for a driving tool. The galvanized finish provides optimal rust prevention but can be chalky in appearance.

1/4-in x 3-1/2-in Stainless Coarse Thread Exterior Carriage Bolt

Hillman   1/4-in x 3-1/2-in Stainless Coarse Thread Exterior Carriage Bolt

Approved for pressure treated lumber.

3/8-in x 3/4-in Stainless Coarse Thread Exterior Carriage Bolt

Hillman   3/8-in x 3/4-in Stainless Coarse Thread Exterior Carriage Bolt

Quality fasteners for a variety of home and commercial applications.

1/4-in x 6-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Hillman   1/4-in x 6-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

1/4-in x 8-in Zinc-plated Coarse Thread Interior Carriage Bolt 100 -Count

Hillman   1/4-in x 8-in Zinc-plated Coarse Thread Interior Carriage Bolt 100 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

1/4-in x 4-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Hillman   1/4-in x 4-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

1/4-in x 2-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Hillman   1/4-in x 2-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

1/2-in x 2-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Hillman   1/2-in x 2-1/2-in Zinc-plated Coarse Thread Interior Carriage Bolt 10 -Count

Carriage bolts feature a smooth, dome shaped head, without an external drive for appearance, safety and security. Underneath the head is a square section that is the same diameter as the threaded portion of the bolt, allowing the bolt to be installed with just a single tool. Pre-drilled holes are required for installation.

Secure Attachments With Carriage Bolts

Carriage bolts, also known as coach bolts, are often used for attaching furniture parts. However, these bolts are also ideal fasteners for parts of decks and patios. See our guide — How to Build a Deck: Composite Decking and Deck Rails — which walks you through the specifics of deck-building. You can view the entire project from design to finishing touches when you read our guide — Design and Build a Deck.


The carriage bolt selection we offer comes in several finishes such as galvanized, stainless, zinc-plated and more. The domed head of these bolts gives them a smooth and finished appearance. Our items come in colors like gray, black and tan to match whatever project you may need it for. Black carriage bolts are ideally used on gates and other outdoor applications. Installing carriage bolts is easy — insert them through predrilled holes and secure them with washers and hex nuts. The diameters of standard carriage bolts range from 3/16 inches to 3/4 inches, while available lengths are between 1/2 inch to 16 inches.


Whether you're looking to use carriage bolts for a do-it-yourself furniture job like building industrial side tables or for other home projects, these bolts are a durable choice.