304 Stainless Steel Black Oxide Hex Flange Nut IFI145
304 stainless steel black oxide hex flange nut IFI145 is a high-performance fastening component designed for applications requiring corrosion resistance, stable clamping performance, and an integrated bearing surface. The 304 stainless steel black oxide hex flange nut IFI145 is manufactured from premium 304 stainless steel and finished with a black oxide surface treatment, providing a dark appearance and reliable performance for industrial fastening assemblies.
The 304 stainless steel black oxide hex flange nut IFI145 combines a hex nut structure with an integrated flange base, increasing the bearing area and helping distribute tightening load more evenly. It is widely used in automotive components, machinery, electrical equipment, industrial assemblies, and OEM manufacturing systems.

Product Overview
The 304 stainless steel black oxide hex flange nut IFI145 is a flanged nut designed to replace traditional hex nuts and separate washers in many fastening applications. The integrated flange provides a larger contact surface, reducing pressure concentration on connected materials.
Manufactured according to IFI145 requirements, the 304 stainless steel black oxide hex flange nut IFI145 offers reliable thread engagement and stable assembly performance. The 304 stainless steel material provides excellent corrosion resistance, while the black oxide finish creates a uniform dark surface appearance.
This flange nut is commonly selected by engineers, automotive manufacturers, equipment builders, and industrial distributors requiring compact and reliable fastening solutions.
Product Specifications
| Item | Description |
|---|---|
| Product Name | 304 Stainless Steel Black Oxide Hex Flange Nut |
| Standard | IFI145 |
| Material | 304 Stainless Steel |
| Nut Type | Hex Flange Nut |
| Flange Type | Integrated Washer Base |
| Thread Standard | UNC / UNF / Metric Customized |
| Size Range | According to IFI145 Standard |
| Thread Direction | Right Hand |
| Surface Finish | Black Oxide |
| Material Grade | A2 Stainless Steel Equivalent |
| Application | Industrial Fastening |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, finish, packaging available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material | 304 Stainless Steel |
| Tensile Strength | According to Standard Requirement |
| Yield Strength | According to Material Grade |
| Hardness | According to Specification |
| Density | Approx. 7.9 g/cm³ |
| Corrosion Resistance | Excellent |
| Surface Treatment | Black Oxide |
| Load Distribution | Improved by Integrated Flange |
| Manufacturing Standard | IFI145 |
Materials and Manufacturing Process
The 304 stainless steel black oxide hex flange nut IFI145 is manufactured through precision forming, threading, and surface treatment processes to ensure dimensional accuracy and reliable fastening performance.
- Raw material selection: High-quality 304 stainless steel
- Material inspection: Chemical composition verification
- Nut forming: Cold forging process for stable structure
- Thread processing: Precision internal thread machining or tapping
- Surface preparation: Cleaning before black oxide treatment
- Black oxide finishing: Creates uniform dark surface appearance
- Inspection: Thread gauge testing, dimensional inspection, and surface quality verification
- Packaging: Protective industrial packaging for transportation
Each 304 stainless steel black oxide hex flange nut IFI145 is produced under strict quality control to ensure consistent performance.
Applications of the Product
The 304 stainless steel black oxide hex flange nut IFI145 is widely used in industries requiring corrosion-resistant and stable fastening:
- Automotive industry: Vehicle components and assemblies
- Machinery manufacturing: Equipment frames and mechanical connections
- Electrical equipment: Enclosures and mounting systems
- Industrial automation: Precision machinery installation
- Construction equipment: Structural fastening applications
- Renewable energy: Equipment mounting systems
- Manufacturing systems: Production line assemblies
- OEM products: Customized fastening solutions
The integrated flange design makes it suitable for applications where installation efficiency and load distribution are important.
Why Choose This Product
- Premium 304 stainless steel material
- IFI145 standard compatibility
- Integrated flange improves load distribution
- Black oxide finish provides distinctive appearance
- Excellent corrosion resistance
- Stable thread performance
- Reduces the need for separate washers
- Suitable for industrial assembly applications
- OEM customization support
The 304 stainless steel black oxide hex flange nut IFI145 provides a reliable fastening solution for demanding mechanical assemblies.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Experience with stainless steel nut manufacturing
- Support for ANSI, IFI, DIN, and customized standards
- Advanced cold forging and threading capability
- Professional surface treatment management
- OEM/ODM customization support
- Stable production capacity for bulk supply
- Global export experience
- Engineering support for customized fastening requirements
Flybear provides reliable fastening products for automotive, machinery, industrial equipment, and OEM customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- Stainless steel chemical composition analysis
- Raw material certificate verification
- Thread gauge inspection
- Dimensional accuracy inspection
- Flange thickness and diameter inspection
- Black oxide surface inspection
- Mechanical performance testing
- Packaging quality inspection
All manufacturing processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a 304 stainless steel black oxide hex flange nut IFI145, consider:
- Matching bolt thread specification
- Required flange diameter
- Operating environment
- Corrosion exposure level
- Assembly requirements
- Surface finish preference
Correct selection ensures stable fastening performance and longer service life.
FAQ
1. What is an IFI145 hex flange nut used for?
It is used for fastening applications requiring an integrated flange bearing surface and reliable thread connection.
2. What is the advantage of a flange nut compared with a standard hex nut?
The flange increases the contact area and helps distribute clamping load more evenly.
3. Why choose 304 stainless steel for flange nuts?
304 stainless steel provides excellent corrosion resistance and good mechanical performance.
4. Can IFI145 flange nuts be customized?
Yes, Flybear supports customized sizes, finishes, materials, and packaging.
5. What is the purpose of black oxide treatment?
Black oxide provides a uniform dark appearance and improves surface characteristics.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.




