Black Oxide Flat Washer
Black oxide flat washer is a precision fastening accessory designed for load distribution, surface protection, and reliable bolted connections in industrial applications. The black oxide flat washer is available in both stainless steel and carbon steel materials, providing flexible solutions for different mechanical requirements and operating environments.
The black oxide flat washer features a flat ring structure that increases the bearing area between fasteners and connected components, helping reduce surface damage and improve joint stability. With black oxide surface treatment, it provides a uniform black appearance, reduced light reflection, and enhanced surface protection. It is widely used in machinery, automotive equipment, electronics, tools, and general industrial assemblies.
Product Overview
The black oxide flat washer is engineered to improve the performance of threaded fastening systems by distributing clamping loads evenly. It helps prevent damage to workpiece surfaces and enhances the reliability of bolt and screw connections.
This black oxide flat washer can be manufactured from carbon steel for cost-effective mechanical applications or stainless steel for improved corrosion resistance. The black oxide finish creates a clean appearance and provides additional surface protection while maintaining the original material properties.
As a commonly used industrial fastener accessory, it is widely selected by OEM manufacturers, machinery builders, distributors, and engineering companies requiring stable and customized washer solutions.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Black Oxide Flat Washer |
| Material | Stainless Steel / Carbon Steel |
| Washer Type | Flat Washer |
| Surface Treatment | Black Oxide |
| Shape | Round Flat Washer |
| Size Range | M1.6–M100 / Customized |
| Inner Diameter | According to Standard or Drawing |
| Outer Diameter | According to Standard or Drawing |
| Thickness | According to Requirement |
| Material Options | 304 Stainless Steel / 316 Stainless Steel / Carbon Steel |
| Installation Type | Bolt and Screw Assembly |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, material, finish, packaging available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material | Stainless Steel / Carbon Steel |
| Tensile Strength | According to material grade |
| Yield Strength | According to material grade |
| Hardness | Controlled according to requirement |
| Density | Stainless Steel Approx. 7.9 g/cm³ / Carbon Steel Approx. 7.85 g/cm³ |
| Wear Resistance | Good |
| Corrosion Resistance | Depends on base material and treatment |
| Surface Finish | Black Oxide Coating |
| Manufacturing Standard | DIN / ISO / ANSI / Customized |
Materials and Manufacturing Process
The black oxide flat washer is manufactured through precision metal processing and surface treatment technology to ensure accurate dimensions and consistent performance.
- Raw material selection: High-quality carbon steel or stainless steel sheet
- Stamping process: Precision punching to form washer geometry
- Hole processing: Accurate inner diameter production
- Edge finishing: Removal of burrs and sharp edges
- Cleaning process: Removes oil and surface impurities
- Black oxide treatment: Creates uniform black surface finish
- Post-treatment: Oil coating or protective finishing when required
- Inspection: Dimensional accuracy and surface quality testing
- Packaging: Protective industrial packaging for transportation
Each black oxide flat washer is produced under strict quality control to ensure reliable performance in different applications.
Applications of the Product
The black oxide flat washer is widely used across multiple industries:
- Machinery manufacturing: Equipment assembly and maintenance
- Automotive industry: Vehicle components and mechanical systems
- Electronics equipment: Precision mounting applications
- Power tools: Compact fastening assemblies
- Industrial automation: Equipment installation systems
- Construction equipment: General mechanical connections
- Furniture hardware: Appearance-focused fastening solutions
- OEM manufacturing: Customized product assembly
Carbon steel versions are suitable for general mechanical applications, while stainless steel versions provide improved corrosion resistance.
Why Choose This Product
- Available in stainless steel and carbon steel materials
- Uniform black oxide surface appearance
- Reliable load distribution performance
- Protects surfaces from fastener damage
- Suitable for various industrial applications
- Multiple standards and sizes available
- Stable dimensional accuracy
- Cost-effective fastening solution
- OEM customization support
The black oxide flat washer provides a versatile solution for applications requiring both functional performance and aesthetic surface finishing.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Advanced metal stamping and surface treatment capability
- Experience with stainless steel and carbon steel components
- OEM/ODM customization support
- Stable production capacity for bulk orders
- Strict quality inspection procedures
- Global export experience
- Engineering support for customized requirements
Flybear provides reliable fastening products for distributors, OEM manufacturers, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- Raw material chemical composition analysis
- Material certificate verification
- Inner and outer diameter inspection
- Thickness measurement
- Flatness inspection
- Black oxide coating inspection
- Surface appearance inspection
- Packaging quality verification
All production processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a black oxide flat washer, consider:
- Base material requirements
- Bolt and screw size compatibility
- Required corrosion resistance
- Working environment conditions
- Load distribution requirements
- Surface appearance requirements
Choose carbon steel for economical mechanical applications and stainless steel for improved corrosion resistance.
FAQ
1. What is a black oxide flat washer used for?
It is used to distribute fastening loads and protect surfaces in bolted connections.
2. What materials are available for black oxide washers?
Common materials include carbon steel, 304 stainless steel, and 316 stainless steel.
3. Does black oxide improve corrosion resistance?
Yes, black oxide provides additional surface protection, especially in dry or indoor environments.
4. Can custom black oxide washers be produced?
Yes, Flybear supports customized sizes, materials, and surface treatments.
5. Are stainless steel black oxide washers available?
Yes, stainless steel washers can be processed with black oxide or other dark surface finishes.
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.
