Hex Flange Nuts
A flange nut is a nut that has a wide flange at one end. This helps to distribute the pressure of the nut over the part being secured, reducing the damage of the part and making it less likely to loosen as a result of an uneven fastening surface.
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Product Introduction
Hex flange nuts are one of the most commonly used fasteners in construction and manufacturing industries, owing to their ease of use, durability, and efficiency. Whether you are looking to build, repair, or maintain a structure, using high-quality hex flange nuts can mean the difference between a job well done and one marred by defects, delays, and inefficiencies.
As a China-based manufacturer, we are proud to offer our clients a wide range of high-quality hex flange nuts, meticulously crafted to meet or exceed all international quality standards. From their rugged construction to their versatile design, here's what sets our hex flange nuts apart.
Rugged Durability
Our hex flange nuts are made from premium-grade materials, including carbon steel, stainless steel, and alloy steel, to ensure long-lasting durability even in the harshest environments. This means that they can withstand the rigors of heavy-duty usage, such as high-impact loads, extreme temperatures, and corrosive environments, without losing their strength or structural integrity.
The innovative design of our hex flange nuts also ensures that they can resist vibrations and other mechanical stresses, which can cause conventional nuts to loosen or slip. Unlike traditional nuts, hex flange nuts feature a flange that acts as a mechanical lock, preventing the nut from rotating or backing off once tightened. This not only ensures greater safety and reliability but also reduces the risk of maintenance-related downtime and equipment failure.
Ease of use
One of the key benefits of our hex flange nuts is their ease of use. Our nuts come in a range of sizes, thread pitches, and finishes, making them suitable for a wide range of applications. Whether you are working with square or hexagonal bolts, our nuts can easily fit onto them, providing a secure and tight fit that requires minimal effort.
Our hex flange nuts are also easy to install and remove, thanks to their self-locking features. This allows for quick and efficient assembly and disassembly, reducing the overall turnaround time and labor costs.
Cost-Effective
At our factory in China, we are committed to providing clients with high-quality fasteners that offer excellent value for their money. Our hex flange nuts are competitively priced, making them an affordable option for businesses of all sizes. Despite their affordability, our fasteners do not compromise on quality, making them an ideal choice for businesses that want to save without sacrificing performance.
We also offer customers the option of customizing their hex flange nuts, tailoring them to their specific needs and requirements. This means that clients can choose the size, thread pitch, material, and finish of their nuts, ensuring that they can meet their unique application needs.
Why Choose Our Hex Flange Nut?
Overall, our hex flange nuts are an excellent choice for businesses that want a fastener that is durable, easy to use, and cost-effective. Our nuts have been tested to meet or exceed all international quality standards, ensuring that they can withstand even the most challenging applications. Whether you are in the construction or manufacturing industry or operating in any other field that requires high-quality fasteners, our hex flange nuts are an ideal choice. So why wait? Contact us and place your order today!
Flange nuts are simply hex nuts with flanges, so it is called a hex flange nut, a washer nut, etc. The wide flange on the flanged nut acts as an integral washer, which distributes the pressure of the nut evenly on the part being fastened, reducing the possibility of damage to the part. In many cases, the flange nut is fixed, because there is a serrated flange under the wide flange to provide a locking effect, so this serrated flange nut is also called a serrated flange nut. . The serrations are angled so that the flange nut does not turn in the direction to loosen the nut. The serrations help prevent the shock of the flange nut from moving the fastener, thereby maintaining nut retention. But also because of the serrations, flange nuts cannot be used with washers or on parts that are easily scratched.
Types of Hex Flange Nuts
As a professional flange nuts manufacturer, Jinrui currently produces the following types of flange nuts (in addition, according to your usage, we can customize products, coatings, specifications, etc. that meet your needs) :

Flange Nuts(Serrated Flange Nuts)
Flange nuts, also known as hexagonal flange nuts, and are mostly used in pipe connections or workpieces that need to increase the contact surface of the nut. Choose the appropriate flange nut according to your usage scenario.

Flange nylon lock nut
Flange nylon lock nut is a kind of high anti-vibration and anti-loosening fastener. Because it has a nylon ring, it can provide strong friction when tightening, so the fastening ability is relatively improved. It is mainly used in conjunction with screws, bolts and screws. , Play the role of connecting and fastening parts. Select the appropriate flange nut according to different usage scenarios.

Flange metal lock nut
Flange metal lock nuts are the same as flange nylon self-locking nuts, which enhance the fastening ability by increasing friction. The difference is that the nylon ring inside the metal self-locking nut is replaced by a metal ring. It is mainly used in conjunction with screws, bolts, and screws to connect and fasten parts. Select the appropriate flange nut according to different usage scenarios.
Flange metal self-locking nut
Flange metal self-locking nuts are the same as flange nylon self-locking nuts, which enhance the fastening ability by increasing friction. The difference is that the nylon ring inside the metal self-locking nut is replaced by a metal ring. It is mainly used in conjunction with screws, bolts, and screws to connect and fasten parts. Select the appropriate hex nut according to different usage scenarios.
Features and Advantages of Hex Flange Nuts
The role of nut fasteners is usually to assist bolt-type fasteners for fastening, and flange nut fasteners are no exception. Moreover, compared with hexagonal nuts, the gasket and nut integrated structure of flange nuts greatly increase the number of nuts and nuts. The contact area of the workpiece and the anti-skid serrations also make the flange nut more firm when in use.
As a flange nut manufacturer , Jinrui flange nuts have many materials, but the most commonly used ones are carbon steel flange nuts and stainless steel flange nuts, and in most cases, electroplating is required according to customer needs,The common ones are black galvanized flange nuts, yellow galvanized flange nuts or blue and white zinc flange nuts. In addition, Jinrui can customize a wide range of flange nuts, such as m6 flange nuts, m8 flange nuts, m10 flange nuts, etc.
Production Process of Hex Flange Nuts

Specification of Hex Flange Nuts

d | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | ||
P | Thread Pitch | Coarse Thread | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
Fine Thread 1 | / | / | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | ||
Fine Thread 2 | / | / | / | -1 | -1.25 | / | / | / | ||
c | MIN | 1 | 1.1 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 3 | |
da | MIN | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | |
MAX | 5.75 | 6.75 | 8.75 | 10.8 | 13 | 15.1 | 17.3 | 21.6 | ||
dc | MAX | 11.8 | 14.2 | 17.9 | 21.8 | 26 | 29.9 | 34.5 | 42.8 | |
dw | MIN | 9.8 | 12.2 | 15.8 | 19.6 | 23.8 | 27.6 | 31.9 | 39.9 | |
e | MIN | 8.79 | 11.05 | 14.38 | 16.64 | 20.03 | 23.36 | 26.75 | 32.95 | |
m | MAX | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | |
MIN | 4.7 | 5.7 | 7.6 | 9.6 | 11.6 | 13.3 | 15.3 | 18.9 | ||
mw | MIN | 2.2 | 3.1 | 4.5 | 5.5 | 6.7 | 7.8 | 9 | 11.1 | |
s | MAX=Nominal Size | 8 | 10 | 13 | 15 | 18 | 21 | 24 | 30 | |
MIN | 7.78 | 9.78 | 12.73 | 14.73 | 17.73 | 20.67 | 23.67 | 29.67 | ||
r | MAX | 0.3 | 0.36 | 0.48 | 0.6 | 0.72 | 0.88 | 0.96 | 1.2 | |
Common Grade and Coating
Standard | Material | Grade | Finish | Thread |
DIN6923 | carbon steel | 4 | Plain | UNC |
Zinc plated | ||||
Alloy steel | Yellow zinc plated | |||
PTFE | ||||
Stainless steel | Black Oxide | UNF | ||
Dacromet | ||||
Other | HDG | |||
Other |
Application Area of Hex Flange Nuts
Because the flange nut has a flange, it has the effect of increasing the contact area with the workpiece of the product. It is mostly used in pipe connections, scaffolding fasteners, and some metal stamping parts and cast iron parts that need to increase the contact surface of the nut. If you are not clear about your usage scenario, you can consult our customer service. As a professional machine screw manufacturer, we can provide you with reasonable suggestions.

Jinrui: Your Leading Hex Flange Nuts Manufacturers
Jiangsu Jinrui Metal Products Co., Ltd. was established in 2018. It is a professional manufacturer of fasteners and an excellent manufacturer of flange nuts. The company is located in Hai'an High-tech Zone, Jiangsu Province, China. The factory covers an area of 30,000 square meters , with a total investment of over 100 million yuan,
Jinrui currently has multiple types of heading forming machines, thread rolling machines, nut machines, hot heading thread rolling machines, lathes, large hot heading machines and supporting testing equipment, such as magnetic particle flaw detectors, metallographic analyzers, and salt spray testing machines. , direct-reading spectrometer and optical screening machine, tensile machine, Vickers hardness tester, Rockwell hardness tester, etc., and has an independent research and development department, which can produce national standard (GB), German standard (DIN), American standard (ANSI) , Japanese standard (JIS) and ISO international standards and other high-quality fasteners. Products are widely used in petroleum, chemical industry, boiler, wind power generation, highway guardrail, elevator guide rail, machinery manufacturing, construction site, auto parts and medical equipment and other fields.
As a professional flange nuts manufacturer, Jinrui 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. Make sure that every screw can be used by customers with confidence, confidence and peace of mind!
Why choose us?
- Our Hex Flange Nut products are rigorously tested to ensure they meet all necessary safety and quality standards.
- We wholeheartedly welcome users to make valuable suggestions after using this product.
- We maintain strict quality control measures throughout our production process to ensure optimal results.
- We can provide personalized customized services and value-added services for customers' needs.
- As a reputable Hex Flange Nut manufacturer, we are trusted by many customers both domestically and internationally.
- We will speed up to break the difficulties in reform and innovation, industrial structure, development quality, etc., to build up momentum and gather energy for the company's high-quality development to open up new horizons.
- Our Hex Flange Nuts are tested to ensure that they meet the highest industry standards.
- In the development of our company at the same time, we do not forget to constantly summarize, constantly optimize customer service, and as always, the enthusiasm has won the favor of new and old customers.
- We are committed to providing cost-effective and efficient solutions for our customers' Hex Flange Nut requirements.
- Our company has self-built modern warehousing and rapid distribution center, introduced international advanced production equipment and management system, established a professional Hex Flange Nuts comprehensive industrial chain, and provided multiple styles of Hex Flange Nuts and supporting products to meet the needs of millions of consumers around the world.
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