Heavy-Duty Carriage Bolts | Anti-Corrosion & Custom Sizes

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Our Screwfix Carriage Bolts – Reliable for Screwfix Applications

With decades of experience, we supply screwfix carriage bolts compatible with screwfix systems, designed for easy integration into pre-drilled holes in wood, metal, or concrete. They feature a square neck for stability and a threaded shank that pairs with screwfix nuts for secure fastening. Made from high-strength, corrosion-resistant materials, they’re suitable for both indoor (furniture, shelving) and outdoor (decks, fences) screwfix projects. Our screwfix carriage bolts meet strict size standards, ensuring compatibility and reliability.
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Why choose us?

High - Strength Carriage Bolts for Heavy - Duty Projects

Our carriage bolts are engineered for heavy - duty applications in construction, machinery, and outdoor projects. The square neck design prevents the bolt from rotating during installation, making the fastening process more efficient. Made from high - strength steel, they can withstand significant loads and vibrations. We offer a variety of sizes and finishes, including galvanized and stainless steel options for enhanced corrosion resistance. With our extensive industry knowledge and professional manufacturing process, you can rely on our carriage bolts for your most demanding projects.

Size - Customizable Carriage Bolts for Specific Projects

We recognize that not all projects can be completed with standard - sized carriage bolts. That's why we offer size - customizable carriage bolts. Our professional team can work with you to determine the exact length, diameter, and thread pitch you need for your specific project. Whether it's a unique construction project or a custom - made piece of machinery, our customizable carriage bolts can provide the perfect fit. With our advanced manufacturing capabilities and 30 - year history, we can produce high - quality, customized carriage bolts efficiently.

Anti - Corrosion Coated Carriage Bolts for Outdoor Use

For outdoor projects, our anti - corrosion coated carriage bolts are a great choice. These bolts are coated with a special layer that protects them from rust and corrosion caused by rain, snow, and humidity. Whether you're building a deck, a fence, or an outdoor furniture set, our anti - corrosion carriage bolts will maintain their strength and appearance over time. With our 30 - year experience in hardware manufacturing, we ensure that the coating is evenly applied and adheres firmly, providing long - lasting protection against the elements.

Related products

Screwfix carriage bolts are a convenient and reliable option for those looking for high - quality carriage bolts with the ease of purchase and availability associated with the Screwfix brand. Screwfix is a well - known supplier of hardware and building materials, offering a wide range of products to meet the needs of both professionals and DIY enthusiasts. Screwfix carriage bolts are available in various sizes, materials, and finishes to suit different applications. Whether you need steel carriage bolts for general - purpose projects, stainless steel carriage bolts for outdoor or marine applications, or brass carriage bolts for decorative purposes, Screwfix is likely to have the right option for you. The bolts are manufactured to high standards, ensuring their strength, durability, and reliability. One of the advantages of choosing Screwfix carriage bolts is the convenience of purchase. Screwfix has a network of stores across the country, as well as an online shopping platform, making it easy to find and buy the carriage bolts you need. The online platform provides detailed product information, including specifications, dimensions, and customer reviews, helping you make an informed decision. In addition to the bolts themselves, Screwfix also offers a range of related products, such as nuts, washers, and drilling tools, which can be purchased together to complete your project. This one - stop - shop approach saves time and effort, as you do not need to visit multiple stores to find all the necessary components. If you are interested in Screwfix carriage bolts but are not sure which type is right for your project, you can contact our team for expert advice. We can help you select the appropriate size, material, and finish of carriage bolts based on your specific requirements.

Frequently Asked Questions

What materials are Zhongsheng’s copper washers made of?

Our copper washers use high-purity copper, offering good conductivity and corrosion resistance. Ideal for plumbing (sealing) and electrical connections, they distribute pressure evenly, lasting long per our 30-year quality standard.
Yes, our rubber washers use elastomers (silicone, nitrile) resisting high/low temps, chemicals, and moisture. They seal leak-proof for plumbing/automotive/industrial use, with customization available for specific conditions.
Our screw assortment has various screws (wood, sheet metal, machine) in sizes/materials, packed in organized plastic boxes. It covers most DIY needs (furniture, repairs), saving time on sourcing individual screws.
Yes, our cable ties are versatile. UV-resistant for outdoor (garden cables), reusable/flame-retardant for indoor (electrical). Sizes fit different bundle weights, meeting home/industrial needs.

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Customer Reviews

Charles Adams
Custom Carriage Bolts for Industrial Equipment

Our factory needed custom-sized carriage bolts for a piece of industrial equipment, and Zhongsheng Hardware delivered exactly what we needed. The bolts are made of high-quality materials, and they fit the equipment perfectly. The professional team worked closely with us to ensure the specifications were correct, and the delivery was on time. The bolts have held up under heavy use, and they’ve improved the equipment’s performance. Great customization service and high-quality products.

Susan King
Easy-to-Install Carriage Bolts for Furniture Assembly

I used these carriage bolts to assemble a heavy wooden workbench, and they were easy to install. The rounded head gives the workbench a clean look, and the square neck keeps the bolts in place while tightening the nuts. The bolts are strong, and the workbench is very stable. The PS plastic-absorbing box had all the sizes I needed, and the instructions were simple to follow. For a DIY furniture project, these bolts are perfect— strong, easy to use, and affordable.

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Why Our Carriage Bolts? Heavy-Duty & Weather-Resistant

Why Our Carriage Bolts? Heavy-Duty & Weather-Resistant

Ideal for decks, fences, or machinery, our carriage bolts have anti-spin necks, corrosion-resistant coatings, and come in plastic-absorbing boxes. We offer quality at good prices and custom sizes. With 30 years of experience, we’re trusted by foreign firms. Contact us now for more on your heavy-duty needs.