Best Carriage Bolts of 2025
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Carriage bolts are a type of fastener commonly used in woodworking and construction projects. These bolts have a smooth, dome-shaped head and a square section underneath that prevents them from turning when tightened. They are typically used to fasten wood to metal or to attach objects to a wooden surface. Carriage bolts come in a variety of sizes and materials, including stainless steel, zinc-plated steel, and brass. They are known for their strength and durability, making them a reliable choice for a wide range of applications.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 10 Carriage Bolts
ForgeFix M10 x 130mm Carriage Bolts - Bag of 10
The ForgeFix Carriage Bolts are designed with a round head and a square neck, ensuring that the bolt does not turn while you tighten the nut. This feature is particularly useful for securing timber joints, allowing for a reliable and sturdy connection. Each pack includes a hex nut, making it convenient for you to have everything you need for installation. Additionally, these bolts are zinc plated to enhance their resistance to corrosion, ensuring durability in various environments.
ForgeFix M10 x 150mm Zinc Plated Carriage Bolts
The ForgeFix Carriage Bolts are designed with a round head and square neck, ensuring they remain secure while you tighten the nut. This feature is particularly beneficial when joining timber, as it provides stability and strength to your projects. Each bolt comes with a hex nut, making installation straightforward and convenient. Additionally, the zinc plating offers increased resistance to corrosion, ensuring longevity and reliability in various weather conditions. These bolts are an excellent choice for anyone looking to enhance their timber joining tasks.
Merriway Carriage Bolts with Nuts Pack
The Merriway Carriage Bolts are a pack of ten M6 x 100 mm bolts featuring a round head and square neck design. These bolts are ideal for providing a secure fastening solution for various projects, ensuring stability in your assemblies. The inclusion of nuts enhances convenience, allowing for straightforward installation. Additionally, following the provided instructions ensures proper assembly and maintenance, giving you peace of mind in your DIY tasks.
ForgeFix M8 x 180mm Carriage Bolts, Pack of 10
The ForgeFix Carriage Bolts are designed to meet DIN603 and DIN934 standards, ensuring high quality and reliability. With a fully threaded length of up to 100mm, these bolts provide excellent grip for various applications. The square section beneath the dome head prevents rotation, making installation easier for you. Often used for joining timber to timber, these bolts are a practical choice for your woodworking projects.
TERF® M6 Cup Square Carriage Bolts Pack
The TERF® Carriage Bolts are a versatile solution for your fastening needs. Each pack contains 10 cup square carriage bolts and nuts, ensuring you have enough for your projects. Manufactured from zinc plated steel, they provide excellent durability and corrosion resistance, making them ideal for outdoor use. The M6 (6mm) X 120mm size is a standard measurement that fits a variety of applications, while the mushroom/dome head type allows for easy installation and a neat finish. It's essential to check your required size before purchasing.
TERF M5 Cup Square Carriage Bolts Pack
The TERF M5 Carriage Bolts are a reliable choice for your fastening needs. This pack includes 20 cup square carriage bolts and nuts, ensuring you have enough for your project. Made from zinc plated steel, they offer durability and rust resistance, which is essential for outdoor use. With a size of M5 (5mm) X 70mm, they fit a variety of applications. The mushroom head type provides a smooth finish and helps distribute weight evenly, enhancing stability in your constructions.
Merriway Zinc Plated Carriage Bolts and Nuts
The Merriway Carriage Bolts are a reliable choice for your fastening needs. This pack contains four M6 x 100mm bolts with nuts, making them ideal for various projects. Their round head design provides a clean finish, while the square neck prevents the bolt from rotating during installation. Following any included instructions ensures proper usage, allowing you to achieve secure and sturdy assemblies with ease. With these carriage bolts, you can enjoy convenience and reliability in your DIY tasks.
Merriway Carriage Bolts with Nuts Pack
The Merriway Carriage Bolts are a reliable choice for various fastening needs. This pack includes six M6 x 150mm bolts with nuts, ensuring you have enough for your projects. The round head design provides a sleek finish, while the square neck prevents the bolts from turning during installation, making your work easier. Following the included instructions for fixing is essential to ensure a secure assembly, giving you peace of mind in your repairs or constructions.
Merriway Carriage Bolts with Nuts Pack
The Merriway Carriage Bolts are a pack of 25 M8 x 75mm zinc plated bolts that feature a round head and square neck. These bolts are perfect for various fixing and assembly projects, providing a secure fit for your needs. The included nuts ensure a complete solution for fastening, giving you everything you need in one pack. Following the included instructions will help you achieve the best results, making your tasks easier and more efficient.
TERF M8 X 120mm Carriage Bolts and Nuts Pack
The TERF Carriage Bolts Pack includes 10 pieces of M8 (8mm) X 120mm cup square carriage bolts and nuts, perfect for various construction and DIY projects. Made from zinc plated steel, these bolts offer durability and resistance to corrosion, ensuring a long-lasting solution for your fastening needs. The mushroom/dome head type provides a neat finish and helps prevent loosening, giving you peace of mind. Remember to check your required size and quantity before purchase for the best fit.
Frequently Asked Questions (FAQs)
1. What are carriage bolts used for?
Carriage bolts are ideal for fastening wood to metal. Alternatively, carriage bolts can also be used to fasten two pieces of wood together. Some specialty versions of carriage bolts allow for the effective fastening of two separate metal components.
2. Why are carriage bolts called that?
Carriage bolts are an application specific fastener designed for use in carpentry, wood base materials and the construction of wood products. They get their name from their original purpose, which was in the construction of carriages and carriage wheels back in the early 1800s.
3. What is the difference between a lag bolt and a carriage bolt?
A lag bolt has a tapered shaft with threads that run about half the length of the bolt. A carriage bolt usually has a square neck with threads that run about three-quarters of the length of the bolt. The carriage bolt tends to have a rounded head, while the lag bolt has a hexagonal or square head.
4. What is another name for carriage bolts?
A carriage bolt (also called coach bolt and round-head square-neck bolt) is a form of bolt used to fasten metal to metal or, more commonly, wood to metal.
During our carriage bolt research, we found 306 carriage bolt products and shortlisted 10 quality products. We collected and analyzed 8,659 customer reviews through our big data system to write the carriage bolts list. We found that most customers choose carriage bolts with an average price of £5.74.
The carriage bolts are available for purchase. We have researched hundreds of brands and picked the top brands of carriage bolts, including Forgefix, Merriway, TERF.
Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.