As a leading Flange nuts Manufacturers in India, we offer precision threaded fasteners that are created using high-quality metals like carbon steel, stainless steel, brass, and copper alloys according to the needs of the application. These nuts are still in high demand, as they incorporate an attachment washer into a single nut that serves as an improved fastening tool and enhances installation ease.
They are prevalent in automotive parts, construction machinery, sheet metal, structural construction, and equipment construction. The existing manufacturers guarantee that the nuts are in line with the international standards, such as the DIN, ISO, and ASTM standards, to ensure the joint is safe for the mechanical load, tightening torque, and environmental conditions.
Normally, the Production Process is
- Raw material that is selected is certified metal rods or wire coils.
- The process of creating nut blanks involves either cold forging or hot forging.
CNC Machining:
human intervention. Precision hex shaping is a method of machining cutters designed to produce a hex-shaped cutter that can be assembled into a machined component. CNC machining: human intervention. Precision hex-shaping CNC machining is a cutter machining technique used to create a cutter in the form of a hex, which can be fitted into a machined part.
Thread tapping and pitch calibration: This feature allows pitch and thread tapping to be adjusted simultaneously.
- Edge smoothing and deburring
Dimensional inspection and sorting
Dimensional inspection and sorting
- Batch recognition and safe packing
Tight tolerance threading is done to achieve correct mating with bolts and studs, to reduce play and to prevent early loosening.
Surface Finishing Methods
Flange nuts can be used in severe conditions; thus, surface finishing helps to increase durability and resistance to corrosion.
Finishing: The usual ways of finishing are:
- Natural self-colour finish
Zinc plating is used in corrosion protection.
- Nickel plating serves as a protective and decorative coating.
Hot-dip galvanising is intended to be used as an outdoor and structural treatment.
The stainless steel grades are passivated.
The industrial machinery is coated with either phosphate or black oxide.
These finishes enhance resistance to oxidation, moisture, and mechanical wear, besides enhancing the service life under industrial and outdoor environments.
Quality Inspection Procedures
Trustful producers introduce the strict inspection measures before delivery:
- Gauges and vernier callipers are used to check for dimensional correctness.
- Go/No-Go gauge thread testing.
- The process also includes testing the tightening performance and measuring the torque.
- Surface finish evaluation
- The composition of the materials is tested.
- Coated nuts Salt spray corrosion testing.
Batch traceability is maintained, and material test certificates are provided to OEMs and industrial clients.
| Parameter |
Specification |
| Product Name |
Flange Nut |
| Standard |
DIN 6923 / ISO 4161 |
| Type |
Serrated Flange Nut / Non-Serrated Flange Nut |
| Thread Type |
Metric / UNC / UNF |
| Thread Size |
M4 to M20 |
| Nominal Diameter |
4 mm to 20 mm |
| Material |
Carbon Steel / Stainless Steel / Alloy Steel |
| Grade |
Class 8 / Class 10 / A2 / A4 |
| Finish |
Plain, Zinc Plated, Black Oxide, Hot Dip Galvanized |
| Coating Thickness |
5–25 Microns (Zinc Plating) |
| Corrosion Resistance |
Moderate to High (depending on material and coating) |
| Feature |
Built-in Washer Flange for Load Distribution |
| Locking Mechanism |
Serrations Provide Anti-Loosening Grip |
| Applications |
Automotive, Machinery, Structural, Sheet Metal |
| Strength |
High Strength and Vibration Resistance |
| Temperature Resistance |
Up to 300°C (Material dependent) |
| Customization |
Available as per drawing or sample |
| Packaging |
Bulk, Box Packing, Export Packing |
| Country of Origin |
India |
What are flange nuts?
A flange nut is a threaded fastener that combines a washer-like flange within its base. The clamping load is distributed over a larger surface area by the flange; therefore, no additional washer is needed, and the mating material also does not wear out.
Flange nuts do not loosen in vibration as frequently as normal nuts do since the bearing surface is larger, creating greater friction and stability in the joint. They are usually employed where repetitive motion, dynamic load, or frequent assembly is involved.
The design will also decrease the time taken to assemble and the time it takes to handle inventory, as well as enhance the uniformity of installation in manufacturing facilities.
Key Features
Load Distribution
The wide flange spreads pressure equally, thus avoiding the surface indentation and deformation.
Vibration Resistance
The contact area will improve, friction will increase, and self-loosening will decrease.
Integrated Washer Design
Removes the necessity of a disconnecting washer.
Fast Assembly
- This feature eliminates the need for time and labour during the installation process.
- High-Strength Fastening
- Able to accommodate loads that are dynamic and cyclic.
Reusability
Unserrated ones can be reused without the mating surface being damaged.
Wide Size Range
Micrometric and imperial sizes—4 to 24 and more—are available.
Types of Flange Nuts
Serrated Flange nuts
Angled teeth beneath the flange are used to hold onto the surface and cannot be loosened. Perfect in machinery and automobiles.
Non-Serrated Flange Nuts
Ensure a smooth flange surface that can be painted or made of soft material to prevent damage.
Nylon-reinforced nylon inserts (Nylock Flange nuts)
Add a nylon locking insert that enhances prevailing torque and provides enhanced security in assemblies of safety-critical components.
Stainless Steel Flange Nuts
Offer excellent resistance to corrosion in marine and outdoor conditions.
High-Tensile Flange nuts
These nuts find their application in heavy structures and bearing assemblies.
Its uses in other industries:
Automotive Industry
- Engine assemblies
- Chassis mounting
- Suspension systems
- Exhaust connections
Construction and Structural Work.
- Steel framework fastening
- Roofing sheets
- Pre-engineered buildings
Machinery and Equipment
- Housing of industrial machines.
- Pumps and compressors
- Agricultural equipment
Sheet Metal and Fabrication
- Panels and enclosures
- HVAC systems
- Electrical cabinets
General Manufacturing
- Conveyor systems
- Appliance assembly
- Fabricated structures
Environmental Performance
- The structures exhibit a robust vibration resistance.
- Deep mechanical loading capacity.
- The fastening remains unshaken even during dynamic operations.
Advantages of Flange Nuts
Washer and nuts, one part
- Faster installation
- Decreased inventory levels.
- Long service life
- High clamping reliability
- These nuts are suitable for both industrial and outdoor applications.
- Maintenance and replacement are easier.
Due to these properties, the use of flange nuts can frequently be preferred to standard hex nuts with an attached washer in the assembly of automotive and machine work.
Flange Nuts Suppliers in India
We are one of the leading Flange Nuts Suppliers in India.
The company currently maintains a broad range of sizes, grades, and finishes as a Flange nuts Supplier in India to cater to OEMs, contractors, and maintenance companies.
The suppliers usually supply:
- Ready stock availability
- Technical specifications
- Material certificates
- Packaging and shipping security.
Suppliers are needed to sustain continuous assembly processes in industries.
Flange Nuts Dealers in India
We are an India-based Flange Nuts Dealers in India and a distributor of fasteners to workshops, fabricators, mechanics, and repair contractors. When small quantities are required within a short timeframe, the dealers prove to be invaluable.
They typically handle:
- Small and medium orders
- Spare parts in the case of an emergency.
- Retail hardware shop supply
- Local instant availability of sizes.
Flange Nuts Wholesalers in India
Being reliable Flange Nuts Wholesalers in India, bulk storage and distribution throughout the country are handled effectively. Wholesalers directly purchase products from the manufacturers and also distribute them to traders and the project contractors.
Their roles include:
- Bulk warehousing
- Competitive pricing
- Logistics coordination
Regional supply distribution: for example, supplying the area where the products are consumed.
The industries with big infrastructure and production are based on the constant supply of wholesalers.
Connect With Us
Kiran Industries offers users high-quality flange nuts in both standard and custom designs, ensuring a long-lasting finish. We offer technical support, quantity shopping, and reliable delivery.
Call us now to tell us what you need, get quote prices, and get sure fastening tools to fit your projects.
