U Bolts
The reason why these fasteners are called U-bolts is due to their unique "U" shape. Typically formed by bending a metal bar into a U-shape, they are then secured using two threaded arms and nuts.
U-bolts are known for their unique shape, which makes them a non-standard part. Their primary function is to secure pipes and sheets, including water pipes and automobile leaf springs. These fasteners can also be utilized as anchor bolts in concrete under special circumstances. The versatility of U-bolts makes them an essential component in various industries, ensuring the safety and stability of different structures. In summary, U-bolts are reliable fasteners that are highly sought after due to their exceptional design and functionality.
With over 23 years of expertise in U-bolt production, Jiangsu Jinrui Metal Products Co., Ltd. stands as a leading supplier in China. Our commitment to excellence guarantees that we can deliver U-bolts tailored to your specifications. Moreover, if you require specialized products, we are pleased to offer comprehensive customization services to ensure your utmost satisfaction. Trust us to provide you with the perfect U-shaped bolts that precisely cater to your needs.
Types of U-bolts
Jinrui, a reliable U-bolts manufacturer, takes pride in providing various types of U-bolts to cater to the specific needs of its clients. Apart from our existing product lines, we can also customize the coatings, specifications, and other features depending on your usage. Rest assured that Jinrui is committed to delivering top-quality products that meet and exceed your requirements. Contact us to learn more about our products and services, and let us help you find the perfect U-bolts for your needs.

U-bolt
The U-bolt is aptly named for its unique "U" shape. It features two threaded ends that are coupled with nuts. U-bolts are commonly used to securely fasten tubular objects, including water pipes, or sheet objects, like automobile leaf springs. If you need custom U-bolts for specific applications, Jinrui can manufacture them to your exact specifications.

Square U Bolts (Right Angle U Bolts)
We specialize in providing custom square U-bolts at Jinrui. These U-shaped bolts have a smooth U-shaped radian that transforms into a right angle, making them ideal for fixing angular tubular objects, wires, or sheets such as leaf springs in automobiles. The U-bolts have threads at both ends, allowing them to be easily combined with a nut for secure fastening. If you require custom specifications or variations, our team can assist you in tailoring the U-bolts to meet your specific needs. Trust Jinrui for high-quality and reliable square U-bolts that are designed to effectively support and secure your applications.

V-bolt
The V-shaped bolt derives its name from its unique structure, featuring a V-shape that enables it to better secure objects. On each end of the bolt are threads, which allow it to be fastened with a nut. Particularly effective for fixing tubular objects like water pipes or structures with square and angular shapes, this special V-shaped design provides a secure fit in various usage scenarios.
Feature and Advantage
U-bolts have gained popularity for fastening pipes or sheets due to their unique "U"-shaped bending structure. This type of installation is remarkably convenient and efficient. The U-bolt's curved design allows for maximum compatibility with tubular objects, minimizing space occupation without necessitating any special reinforcement. Consequently, the cost of fastening is reduced, and maintenance becomes a straightforward task. By reorganizing the provided information while maintaining the essence, a highly similar content is generated.
Jinrui, a well-known U-bolt manufacturer, specializes in producing various types of U-bolts to cater to different needs in the market. Our product range includes stainless steel U-bolts, stainless steel square U-bolts, carbon steel U-bolts, and more. With our advanced production capabilities, we can manufacture a diverse selection of U-bolts, such as the commonly used m4 U-bolts, m6 U-bolts, m8 U-bolts, m10 U-bolts, and many others. Our commitment to quality and precision in every U-bolt we produce sets us apart in the industry. Choose Jinrui for reliable and customizable U-bolt solutions.
You can trust Jinrui for its exceptional and consistent surface treatment process. Our U-bolt galvanized surface treatment is known for its reliability and high-quality. Feel free to purchase U-bolts from Jinrui, as we guarantee excellent products.
Production Process of U Bolts

Specification of U Bolts
| ||||||||
类型 | 公称直径 d | 螺距 p | b | n | l | |||
Max | Min | Max | Min | Max | Min | |||
HR8 | M8 | 1.25 | 21.5 | 18.5 | 19 | 17 | 41.5 | 38.5 |
HR10 | M10 | 1.5 | 29.5 | 26.5 | 23 | 21 | 51.5 | 48.5 |
MR12 | M12 | 1.75 | 36.5 | 33.5 | 27 | 25 | 61.5 | 58.5 |
WR14 | M12 | 1.75 | 41.5 | 38.5 | 29 | 27 | 66.5 | 63.5 |
MR16 | M14 | 2 | 46.5 | 43.5 | 33 | 31 | 76.5 | 73.5 |
MR18 | M14 | 2 | 51.5 | 48.5 | 35 | 33 | 81.5 | 78.5 |
HR20-22 | M18 | 2.5 | 62 | 58 | 45.5 | 42.5 | 102 | 98 |
JR24-25 | M20 | 2.5 | 67 | 63 | 49.5 | 46.5 | 112 | 108 |
HR26-28 | M22 | 2.5 | 72.5 | 67.5 | 55.5 | 52.5 | 122.5 | 117.5 |
JR30-32 | M22 | 2.5 | 77.5 | 72.5 | 59.5 | 56.5 | 132.5 | 127.5 |
HR33-38 | M27 | 3 | 88 | 82 | 72 | 68 | 153 | 147 |
HIR40-45 | M30 | 3.5 | 98.5 | 91.5 | 82 | 78 | 178.5 | 171.5 |
HR47-50 | M33 | 3.5 | 103.5 | 96.5 | 91 | 87 | 198.5 | 191.5 |
Common Grade and Coating
Standard | Material | Grade | Finish | Thread |
Non standard | carbon steel | 4.6 | Plain | UNC |
Zinc plated | ||||
Alloy steel | Yellow zinc plated | |||
PTFE | ||||
Stainless steel | Black Oxide | UNF | ||
Dacromet | ||||
Other | HDG | |||
Other |
Application Area of U Bolts
U-bolts are widely used and are generally used on pipelines and trucks to ensure structural stability. In addition, it can be seen in construction installation, mechanical parts connection, vehicles and ships, bridges, tunnels and railways. If you are not clear about your usage scenario, you can consult our customer service. As a professional U-bolt manufacturer, we can provide you with reasonable suggestions.

Jinrui: Your Leading U-bolt Manufacturers
Jiangsu Jinrui Metal Products Co., Ltd. was established in 2018 and is located in Haian High-tech Zone, Jiangsu Province, China. It is a professional fastener manufacturer in China. At present, its main products include bolts, nuts, screws, studs and other non-standard products. Ten types, among which the annual output of U-bolts reaches more than 5,000 tons, and we have close cooperation with more than a dozen companies in Germany, the United States, Brazil and other countries. The company has passed the ISO9001:2015 quality system certification and IATF16949:2016 automobile quality management system certification. We have also insured the "Global Product Liability Insurance" in the People's Insurance Company of China to ensure that our customers can buy with confidence. Welcome to Jin Ruihua visits the factory, as an expert U-bolt manufacturer supplier, we are looking forward to cooperating with you.
FAQ
Q1: Are you a factory or trading company?
A: We are manufacturer of hex bolts and nut for more than 20 years . We have two factories, one in Shanghai and the other in Jiangsu. Our production capacity can be 20000 + tons per year. We can customize our products according to customers' requirements, drawings and samples.
Q2: How many years you do foreign trade?
A: We have more than 20 years experience in exporting products to worldwide countries with our best quality. Now we have exported more than 40 countries, such as Spain, Germany, Italy, Belgium, United Kingdom, Lithuania, USA, Canada, Australia, Singapore,Japan, Thailand, Malaysia, South Korea,Indonesia, Egypt, Philippines and so on.
Q3: Do you have enough outputs?
A: We have enough stock in warehouses with abundant capital. We offer 24-hour services. For most common standards, we have them on stock, such as hex bolts, hex nuts, etc.
Q4: How to ensure that every process's quality?
A: First, we have technical drawings for each product when producing.
Second, our workers most have more than 10-years experience of doing hex bolts.
Third, our QC people will do inspection every 2 hours. If finding the bad parts, they will stop the porduction immediately.
Then,the finished parts will be checked again before shipment which insures every product's quality.
Q5: How to ensure the safety of long-distance transportation?
A: We pack into cartons first, and then pack cartons on pallets. The pallet is very easy to lift by Forklift wihch will protect the cartons from damage. Professional packing teams which keep every packing safely.
Q6: What products can you customize?
A:One is standard parts, such as DIN933, hex bolts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN933, M12X60,grade 8.8, zinc plated and 20000pcs.
If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.
There are many, such as hexagon bolts, flange bolts, round head square neck bolts, as well as track bolts, U-bolts, T-bolts, flat head hexagon bolts, hex nuts, hex flange nuts .
Q7: Can you provide some sample?
A: Samples can be provided as your requirements.
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