Carriage Bolt
Your Professional Carriage Bolt Supplier
Shuifu Hanyang Machinery Technology Co., Ltd. is a company specializing in high-strength fasteners, hardware accessories, mechanical parts and other products, integrating production, sales, and research and development. It operates in the spirit of "operating with integrity and advocating standards" concept, give full play to regional and industrial advantages, serve customers around the world, and provide professional fastener connection solutions.
Why Choose Us
Customized Services
We understand that each customer has distinct manufacturing requirements. Consequently, we offer tailored solutions to address your specific needs.
Quality Certification
We have obtained TUV certification and ISO 9001 quality management system certification. Our factory adheres to major production standards, including DIN, ANSI, BS, ISO, JIS, GB, UNI, and others.
Advanced Production Equipment
Our facility is equipped with state-of-the-art machinery, such as one-touch double punching machines, multi-station cold heading machines, CNC lathes, large-scale hot punching equipment, and punch presses, among others.
Parameter
|
Product: |
Large Carriage Bolts |
|
Material: |
304 Stainless Steel |
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Dimension: |
M8 x 20mm |
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Pitch: |
1.25mm |
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Thread Length: |
15mm / 0.59" |
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Head Dia: |
20mm / 0.79" |
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Head Thickness: |
4mm / 0.16" |
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Square Neck Width: |
8mm / 0.31" |
Self-locking Mechanism
The square cross-section just beneath the head of a carriage bolt allows it to fit into a square hole, which makes it self-locking when used in a square hole in a metal strap. This design advantage allows the fastener to be installed using only one tool, from one side of the material.
Single-sided Removal
The carriage bolt is commonly used in security applications where the bolt must be removable from one side only. The smooth, domed head and the square neck prevent the bolt from being gripped and rotated from the insecure side.
Strong, Non-rotating Hold
Carriage bolts are effective in fastening wood to metal, and wood to wood due to the square section under the head that provides enough grip to prevent rotation when used in bare timber.
Versatility
Carriage bolts can be used in various industries, such as water conservation and treatment, railroad, farming, and mining. They are also suitable for use in different applications such as fastening metal to metal, wood to metal, and wood to wood.
Ease of Installation
Carriage bolts are designed to be inserted into pre-drilled holes. Once the bolt is inserted into the hole (by hand or gently with a hammer if needed), a washer and nut are attached to secure the bolt. The washer helps to prevent damage when the nut is used to pull the bolt through the material.
Strength
Carriage bolts possess both tensile and shear strength, which depends on the grade and material of the fastener. This contributes to the bolt's durability and the secure hold it provides.
Application of Carriage Bolt
Wood Constructions
Carriage bolts are extensively used in woodworking and timber construction, including decks, docks, outdoor furniture, and wooden bridges. The smooth, round head is ideal for applications where a flat surface is necessary or desirable for aesthetic and safety reasons.
Outdoor Structures
They are ideal for outdoor structures such as pergolas, gazebos, and playsets, where the bolt’s corrosion resistance (especially in treated or galvanized variants) and the smooth head design are beneficial.
Fencing and Railings
Carriage bolts are used in the construction of wooden or metal fencing and railings, providing a secure fastening solution that is also visually appealing.
Automotive Applications
In automotive construction, carriage bolts are used to assemble frame structures, trailers, and other components where a smooth bolt head is required to reduce the risk of injury or snagging.
Marine Construction
For marine applications, stainless steel or silicon bronze carriage bolts are used due to their high corrosion resistance, especially in environments exposed to saltwater.
Furniture
They are often used in the assembly of furniture, offering a secure and aesthetically pleasing fastening solution.
Playground Equipment
Carriage bolts are a popular choice for securing playground equipment, ensuring that the fastenings are safe and do not present a snagging hazard to children.
Agricultural Machinery
In agricultural settings, carriage bolts are used in the construction and maintenance of machinery and equipment, benefiting from the bolt’s strength and secure fastening.
Material of Carriage Bolt
Stainless Steel
Stainless steel carriage bolts are widely used due to their corrosion resistance and strength. They are ideal for outdoor applications, especially in marine or coastal environments where saltwater corrosion is a concern. Common grades of stainless steel used for carriage bolts include 18-8 and 316, with 316 offering higher corrosion resistance.
Carbon Steel
Carbon steel bolts are strong and durable, making them suitable for construction and machinery. They can be further protected through coatings like zinc plating to enhance corrosion resistance.
Hot-Dip Galvanized Steel
Hot-dip galvanized carriage bolts are carbon steel bolts coated with a thick layer of zinc. The hot-dip galvanization process provides excellent corrosion resistance, making these bolts suitable for outdoor use, particularly in wet or corrosive environments.
Zinc-Plated
Zinc-plated carriage bolts are coated with a thin layer of zinc to provide corrosion resistance. While not as durable in harsh environments as hot-dip galvanized bolts, they are suitable for a wide range of indoor and less corrosive outdoor applications.
Silicon Bronze
Silicon bronze bolts are known for their strength and excellent corrosion resistance, especially against saltwater. They are often used in marine construction and in applications requiring resistance to weathering and corrosion.
Aluminum
Aluminum carriage bolts are lightweight and resistant to corrosion, making them suitable for applications where weight is a concern and in environments that are not highly corrosive.
Brass
Brass carriage bolts are used for their appearance, corrosion resistance, and antimicrobial properties. They are commonly found in decorative applications and in environments where low friction is required.
Delivery Time And Payment Method
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Delivery time |
30-45 days |
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Payment terms |
30% down payment before producing and 70% balance payment before shipping. |
Delivery Information
Shipping Methods
We offer a variety of shipping options, including sea freight, air freight, railway transportation, and international express delivery, to meet the diverse needs of our customers.
Estimated Delivery Time
We will provide you with the estimated delivery time for your order, which will be clearly stated in the formal order to ensure your rights are protected, allowing you to arrange for the receipt of your goods in a timely manner.
Order Tracking
We provide order tracking services, allowing you to stay informed about the current status and expected arrival time of your order. Detailed inspection information and shipping manifests, including photos and videos, are provided to ensure the security of your transactions.
Certificate
FAQ
We're professional carriage bolt manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap carriage bolt from our factory.
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