Hex Bolts
Hexagon bolts are a type of fastener consisting of a head and a threaded rod (a cylinder with an external thread), which need to be matched with a nut to fasten and connect two parts with through holes.
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Product Introduction
Introduction:
As a manufacturer located in China, we take pride in presenting our world-class product, Hex Bolts. Our company has a history of providing high-quality products to our clients for more than a decade, and our product Hex Bolts is no exception. Our product is widely used in various industries and has received excellent feedback from our delighted customers. This introduction discusses the product, its features, uses, and benefits—the reasons why various industries seek Hex Bolts.
Features of Hex Bolts:
Hex Bolts are standard hexagonal-shaped bolts that are usually made from low carbon steel or alloy. The unique hexagonal shape of these bolts provides additional grip, making it a reliable fastening mechanism for materials such as wood, metal, and plastic. Hex Bolts come in different sizes, lengths, and finishes. We offer various finishes such as Zinc, Hot Dip Galvanized, Black oxide, and plain finish.
Uses:
Hex Bolts have an extensive range of industrial uses. Some of the most common uses are listed below:
1. Construction: Hex Bolts are widely used in the construction industry as they provide strong and sturdy support for buildings, bridges, and other structures. They are ideal for fastening heavy materials such as steel beams.
2. Automotive Industry: Hex Bolts have a prominent place in the automotive industry, where they are used for assembling car and truck frames, engines, and other components.
3. Industrial Manufacturing: Hex bolts are frequently used in industrial manufacturing, where they hold together machine parts, production lines, and other heavy equipment.
4. Agriculture: In the agriculture industry, Hex Bolts are used to fasten machinery and equipment such as harvesters, tractors, and plows.
Benefits:
1. Strong and Secured Fastening: Hex Bolts offer secure and strong fastening of materials, making them ideal for industrial, construction, and automotive applications.
2. Low Corrosion: Our Hex Bolts are of high quality, and the finishes we offer prevent rust, oxidation, and corrosion.
3. Long-Lasting: Our Hex Bolts have a long-lasting life span as they can withstand heavy loads, vibrations, and extreme temperature changes.
4. Economical: Our Hex Bolts are reasonably priced, making them accessible to many industries and businesses.
5. Versatile: Hex Bolts are designed to work with various materials, making them versatile and suitable for a broad range of applications.
Conclusion:
In conclusion, our Hex Bolts are of high quality, versatile, and economical, making them an ideal choice for industries and businesses looking for a reliable fastening mechanism. The product's unique hexagonal shape provides additional grip, making it an excellent alternative to traditional bolts. Our product is durable, and the different finishes we offer prevent rust, oxidation, and corrosion. With Hex Bolts, you can be assured of a stronger and secure connection between materials, making them reliable and safe. We invite you to contact us for more information about our product, and we look forward to serving you.
Hex bolts and nuts are the most popular fasteners at home and abroad. This standard specifies the characteristics of hexagonal bolts with threads from M3 to M64 (including M64) and nominal lengths up to 10mm to 500mm. The main standards are DIN931 partial thread, DIN933 full thread, ISO4014, ISO4017 and American standard ASME B18.2.1.
Hex bolt refers to a fastener consisting of a hex head and a cylindrical screw. Usually, it needs to cooperate with a nut to connect and fasten two parts with through holes. It is also the most basic of the entire fastener category. And one of the most popular products.
Jiangsu Jinrui Metal Products Co., Ltd. is a professional supplier of Hex bots in China. We have more than 23 years of experience in producing Hex bots and can provide all standard sizes of Hex bots. For some special product requirements, we can also provide a full set of customized services, please believe that we will provide you with the perfect hex bolts that meet your needs.
Types of Hex Bolt
As a professional hex bolt manufacturer, Jinrui currently produces the following types of hexagonal bolts (in addition, according to your usage, we can customize products, coatings, specifications, etc. that meet your needs):
DIN933 hex bolt (full thread)
DIN933 full-threaded hex bolts are divided into two types: coarse thread and fine thread. Coarse thread has high root strength and fine thread has high precision. You can choose according to your needs.
DIN931 hex bolt (half thread)
DIN931 semi-threaded hex bolts are generally divided into two types: coarse thread and fine thread, and the bolts with coarse thread are more commonly used. Bolts with fine threads have better self-locking properties and are mainly used for thin-walled parts and harder structures.
Features and Benefits of Hex Bolts
As a professional hex bolt manufacturer, all the hex bolts we produce can be traced to the source of the material, and can provide corresponding reports on the high-quality raw materials used. In addition, the hex bolts we produce have a wide range of sizes, such as M3-M64 , the length is from 10mm-3000mm, and we can guarantee that our hex bolts are all up to standard. Hexagon bolts are made of high-quality steel with high thread precision, such as 6g, 6h, etc. Very smooth when mated with nuts. Additionally, our hex bolts have a nice coating for good corrosion resistance. The coated product will also be tougher and more durable.
Production Process of Hex Bolts

Specification of Hex Bolts (DIN931)

d(DIN931) | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | M10 | M12 | |
P | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | |
b | L≤125 | 9 | 10 | 11 | 12 | 13 | 14 | 16 | 18 | 20 | 22 | 26 | 30 |
125 | - | - | - | - | - | - | 22 | 24 | 26 | 28 | 32 | 36 | |
L>200 | - | - | - | - | - | - | - | - | - | - | 45 | 49 | |
c | min | 0.1 | 0.1 | 0.1 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
max | 0.25 | 0.25 | 0.25 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | |
da | max | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 7.8 | 9.2 | 11.2 | 13.7 |
ds | max | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 7 | 8 | 10 | 12 |
min | 1.46 | 1.86 | 2.36 | 2.86 | 3.32 | 3.82 | 4.82 | 5.82 | 6.78 | 7.78 | 9.78 | 11.73 | |
dw | min | 2.4 | 3.2 | 4.1 | 4.6 | 5.1 | 5.9 | 6.9 | 8.9 | 9.8 | 11.6 | 15.6 | 17.4 |
e | min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 |
k | max | 1.1 | 1.4 | 1.7 | 2 | 2.4 | 2.8 | 3.5 | 4 | 4.8 | 5.3 | 6.4 | 7.6 |
min | 0.98 | 1.28 | 1.58 | 1.88 | 2.28 | 2.68 | 3.35 | 3.85 | 4.65 | 5.15 | 6.22 | 7.32 | |
min | 1.22 | 1.52 | 1.82 | 2.12 | 2.52 | 2.92 | 3.65 | 4.15 | 4.95 | 5.45 | 6.58 | 7.68 | |
k1 | min | 0.7 | 0.9 | 1.1 | 1.3 | 1.6 | 1.9 | 2.28 | 2.63 | 3.19 | 3.54 | 4.28 | 5.05 |
r | min | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | 0.4 | 0.4 | 0.6 |
s | max | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 17 | 19 |
min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | |
d(DIN931) | (M14) | M16 | (M18) | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | |
P | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | |
b | L≤125 | 34 | 38 | 42 | 46 | 50 | 54 | 60 | 66 | 72 | 78 | 84 |
125 | 40 | 44 | 48 | 52 | 56 | 60 | 66 | 72 | 78 | 84 | 90 | |
L>200 | 53 | 57 | 61 | 65 | 69 | 73 | 79 | 85 | 91 | 97 | 103 | |
c | min | 0.15 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 |
max | 0.6 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | |
da | max | 15.7 | 17.7 | 20.2 | 22.4 | 24.4 | 26.4 | 30.4 | 33.4 | 36.4 | 39.4 | 42.4 |
ds | max | 14 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 |
min | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | - | - | - | - | - | |
dw | min | 20.5 | 22.6 | 25.3 | 28.2 | 30 | 33.6 | - | - | - | - | - |
e | min | 24.49 | 26.75 | 30.14 | 33.53 | 35.72 | 39.98 | - | - | - | - | - |
k | max | 8.8 | 10 | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 |
min | 8.62 | 9.82 | 11.28 | 12.28 | 13.78 | 14.78 | - | - | - | - | - | |
min | 8.98 | 10.18 | 11.72 | 12.72 | 14.22 | 15.22 | - | - | - | - | - | |
k1 | min | 5.96 | 6.8 | 7.8 | 8.5 | 9.6 | 10.3 | 11.7 | 12.8 | 14.4 | 15.5 | 17.2 |
r | min | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 |
s | max | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 |
min | 21.67 | 23.67 | 26.67 | 29.67 | 31.61 | 35.38 | - | - | - | - | - | |
Common Grade and Coating
Standard | Material | Grade | Finish | Thread |
DIN933 | 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 Hex Bolts
Hex head bolts are used in a wide range of applications. They are used in most machinery and equipment, as well as in infrastructure fields such as construction and transportation. For example, hex bolts are used in the fields of petrochemical industry, automobile manufacturing, construction, pressure piping, rail transit, steel structure engineering, large-scale power generation machinery facilities and infrastructure. Basically, they can be seen in all corners of the city. Of course, in some specific positions in these areas, some other products will also be used, such as rail bolts, flange nuts, U-bolts, flat head hexagon bolts, T-bolts, round head square neck bolts and hex cap screw, etc. If you are not familiar with the usage scenario, you are welcome to consult us at any time, we are a professional hex bolts manufacturer.

Jinrui: Your Leading Hex Bolts Manufacturers
Jiangsu Jinrui Metal Products Co., Ltd. was established in 2018 and is located in Hai'an High-tech Zone, Jiangsu Province, China. It is a professional fastener manufacturer in China. Jinrui's production management is inherited from the parent company Shanghai Jinrui Standard Parts Co., Ltd. Come, all production technicians have more than 8 years of rich production experience. At present, the factory covers an area of 30,000 square meters, with a total investment of more than 100 million yuan. The annual output of only one product of hexagonal bolts is about 5,000 tons. The business of hexagonal bolts covers more than 20 countries and regions around the world, so it can also be said that Jiangsu Jinrui Metal Products Co., Ltd. is also a professional hex bolt manufacturer. The company has passed the ISO9001:2015 quality system certification and IATF16949:2016 automotive quality management system certification, and we have also insured the "Global Product Liability Insurance" of the People's Insurance Company of China. At present, the company is equipped with advanced multi-functional cold heading equipment, threading machine, nut machine and large hot heading equipment, as well as supporting testing equipment such as magnetic testing machine, metallographic analyzer, salt spray tester, etc. Professional testing personnel guarantee Pass a defective product. Various high-quality fasteners and non-standard products that meet GB, DIN, ANSI, JIS and ISO standards are manufactured through our R&D department. Welcome to Jinrui to visit the factory and 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.
Why choose us?
- Our factory is located in China and we specialize in producing high-quality Hex Bolt products.
- Assume full accountability to fulfill all demands of our purchasers; attain continual advancements by marketing the advancement of our clientele; grow to be the final permanent cooperative partner of purchasers and maximize the interests of purchasers for Hex Bolts.
- Our company has a customer satisfaction guarantee to ensure customer happiness.
- Relying on strong research and development strength, standardized management system, sophisticated production equipment and complete testing methods, our company has now developed into a diversified and group-oriented enterprise.
- We can provide samples for testing to ensure our products meet your requirements.
- Our company insists on independent research and development, and at the same time integrates with external industry, academia and research, to continuously improve research and development capabilities, introduce advanced Hex Bolts research and development results and testing equipment, and occupy an important place in the Hex Bolts field.
- We have a comprehensive warranty policy for our products.
- Generally customer-oriented, and it's our ultimate goal for Hex Bolts.
- We offer customized packaging options to meet customer requirements.
- The rapid development of the economy makes the market put forward higher and greater challenges to the industry. Our company is based on the needs of this industry, takes the direction of high-end industrial development, implements the large and refined brand development strategy and is a dedicated and professional industry leader.
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