Flange Nut Manufacturing Process | Custom Industrial Fastening Solutions

Professional Flange Nut Manufacturer for OEM and Industrial Applications

Flange nuts are one of the most widely used fastening components in automotive, machinery, electrical equipment, construction, and industrial assembly applications.

A flange nut combines a hexagonal nut body with an integrated flange base, providing a larger bearing surface compared with standard hex nuts. This design helps distribute clamping force evenly, reduces surface damage, and improves fastening stability without requiring a separate washer.

As an experienced flange nut manufacturer and OEM fastener supplier, Juxin Fasteners provides high-quality hex flange nuts, DIN 6923 flange nuts, serrated flange nuts, carbon steel flange nuts, stainless steel flange nuts, and customized flange nuts according to customer drawings and application requirements.

What Is a Flange Nut?

A flange nut is a specialized fastener with a built-in circular flange under the nut body. The flange functions similarly to an integrated washer, increasing the contact area between the nut and the assembled parts.

Compared with traditional hex nuts, flange nuts offer several advantages:

• Larger load-bearing surface

• Improved joint stability

• Reduced risk of surface deformation

• Faster installation without additional washers

• Better performance in vibration environments

Common flange nut standards include:

• DIN 6923 Flange Nuts

• ISO flange nut specifications

• OEM customized designs

Flange Nut Manufacturing Process

1. Raw Material Preparation

The production of high-quality flange nuts begins with carefully selected raw materials.

Common materials include:

• Carbon Steel

• Alloy Steel

• Stainless Steel 304 / 316

• Brass

• Special alloys

The raw material is cut into suitable lengths according to flange nut dimensions.

Before production, materials are inspected for:

• Chemical composition

• Mechanical properties

• Material grade

• Dimensional accuracy

Reliable raw materials ensure consistent strength and durability.

2. Turning Process

The prepared material is transferred to CNC turning machines or automatic lathes.

During turning, the machine processes:

• Outer diameter

• Nut body profile

• Flange structure

• Basic dimensions

Precision turning ensures:

• Accurate dimensions

• Stable production quality

• Consistent appearance

Advanced machining technology allows Juxin Fasteners to manufacture both standard and customized flange nuts.

3. Hexagonal Forming and Milling

After turning, the nut body is processed to achieve the required hexagonal shape.

The milling process controls:

• Width across flats

• Hexagonal accuracy

• Surface finish

• Tool engagement compatibility

This ensures the flange nut can be installed correctly using standard tools and automated assembly systems.

4. Thread Tapping

The internal thread is produced through precision tapping.

Thread processing focuses on:

• Thread accuracy

• Smooth engagement

• Proper chip removal

• Dimensional consistency

Each batch of flange nuts is inspected using thread gauges to ensure reliable assembly performance.

Available thread options:

• Metric thread (M3-M24 or customized)

• UNC / UNF thread

• Special OEM thread requirements

5. Heat Treatment

For applications requiring higher mechanical performance, flange nuts undergo heat treatment.

Heat treatment improves:

• Strength

• Hardness

• Wear resistance

• Fatigue performance

Typical applications include:

• Automotive components

• Heavy machinery

• Industrial equipment

6. Surface Treatment

Different industries require different corrosion protection solutions.

Juxin Fasteners provides various surface finishes:

Zinc Plating

Suitable for:

• General industrial applications

• Machinery assembly

• Indoor and outdoor equipment

Zinc Nickel Coating

Provides enhanced corrosion resistance for:

• Automotive applications

• EV components

• Harsh environments

Dacromet / Geomet Coating

Recommended for:

• Construction machinery

• Outdoor structures

• High corrosion environments

Black Oxide

Used for:

• Precision equipment

• Appearance requirements

Flange Nut Applications by Industry

Automotive and Electric Vehicle Industry

Flange nuts are widely used in:

• Vehicle chassis

• Battery pack assemblies

• Engine components

• Body structures

Their excellent load distribution and vibration resistance make them suitable for automotive fastening systems.

Industrial Machinery Manufacturing

Applications include:

• CNC machines

• Automation equipment

• Production lines

• Mechanical assemblies

Flange nuts provide secure fastening under continuous operation.

Electrical and Telecom Equipment

Used in:

• Electrical cabinets

• Control panels

• Telecom enclosures

• Power equipment

Corrosion-resistant coatings extend service life in demanding environments.

HVAC and Construction Equipment

Flange nuts are commonly used for:

• HVAC systems

• Mechanical installation

• Steel structures

• Industrial equipment

Quality Control for Flange Nuts

Juxin Fasteners applies strict quality control throughout production.

Inspection processes include:

Material Inspection

• Raw material verification

• Hardness testing

• Chemical analysis

Production Inspection

• Dimension measurement

• Thread inspection

• Surface checking

Final Inspection

• Torque testing

• Coating thickness inspection

• Salt spray testing

• Appearance inspection

Why Choose Juxin Fasteners for Flange Nuts?

Juxin Fasteners specializes in manufacturing industrial fastening solutions for global OEM customers.

Our capabilities include:

✔ Custom flange nut manufacturing
✔ DIN standard flange nuts
✔ Automotive fastener solutions
✔ CNC machining capability
✔ Multiple coating options
✔ Engineering support
✔ Stable mass production capacity

We support customers from prototype development to large-scale production.

Custom Flange Nut Manufacturer and OEM Supplier

Whether you need standard DIN 6923 flange nuts or customized flange nuts designed for specific applications, Juxin Fasteners provides reliable fastening solutions.

Our engineering team can support:

• Product design optimization

• Material selection

• Surface treatment recommendations

• OEM production requirements

Contact our team for professional flange nut solutions:

Email: info@juxinfasteners.com

Website:
https://www.juxinfasteners.com