Black Oxide Fender Washer
Black oxide fender washer is a wide-diameter fastening accessory designed for improved load distribution, surface protection, and stable fastening performance. The black oxide fender washer features a large outer diameter and thin profile, providing a wider bearing surface compared with standard flat washers.
Manufactured from carbon steel with a black oxide surface treatment, the black oxide fender washer offers improved appearance, reduced light reflection, and basic corrosion protection. It is widely used in automotive assemblies, machinery, electronics, construction, and general industrial fastening applications where a large support area is required.
Product Overview
The black oxide fender washer is engineered to spread clamping force over a larger surface area, helping prevent damage to softer materials such as sheet metal, plastic, rubber, and composite components.
Compared with standard washers, the black oxide fender washer has a larger outside diameter-to-inside diameter ratio, making it suitable for applications requiring additional support without increasing fastener size. The black oxide finish provides a clean black appearance and improves surface protection in dry indoor environments.
As a practical industrial fastener accessory, it is widely selected by OEM manufacturers, equipment builders, automotive suppliers, and maintenance professionals.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Black Oxide Fender Washer |
| Material | Carbon Steel |
| Washer Type | Fender Washer |
| Surface Treatment | Black Oxide |
| Shape | Large Outer Diameter Flat Washer |
| Size Range | M3–M20 / Customized |
| Inner Diameter | Customized According to Requirement |
| Outer Diameter | Large Support Diameter Design |
| Thickness | Customized According to Requirement |
| Surface Finish | Black Oxide Coating |
| Installation Type | Bolt and Screw Assembly |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, thickness, packaging available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material Grade | Carbon Steel |
| Tensile Strength | According to material grade |
| Yield Strength | According to material grade |
| Hardness | Controlled according to requirement |
| Density | Approx. 7.85 g/cm³ |
| Wear Resistance | Good |
| Corrosion Resistance | Improved by black oxide treatment |
| Load Distribution | Excellent due to large bearing surface |
| Manufacturing Standard | Customized / Drawing Based |
Materials and Manufacturing Process
The black oxide fender washer is manufactured through precision metal processing to ensure accurate dimensions, smooth edges, and reliable fastening performance.
- Raw material selection: High-quality carbon steel sheet or coil
- Stamping process: Precision punching to form washer shape
- Hole processing: Accurate inner diameter production
- Edge finishing: Removes burrs and sharp edges
- Cleaning process: Removes oil and surface impurities
- Black oxide treatment: Creates protective black surface coating
- Oil finishing: Improves corrosion protection after treatment
- Inspection: Dimension, thickness, and surface quality testing
- Packaging: Protective industrial packaging for transportation
Each black oxide fender washer is produced under strict quality control to ensure consistent product performance.
Applications of the Product
The black oxide fender washer is widely used across various industries:
- Automotive industry: Body panels and component assemblies
- Machinery manufacturing: Equipment fastening systems
- Electronics equipment: Component mounting applications
- Construction industry: General structural fastening
- Furniture hardware: Decorative and functional connections
- Electrical equipment: Enclosure and panel mounting
- Industrial equipment: Surface protection applications
- OEM products: Customized assembly solutions
Its large bearing surface makes it especially suitable for fastening applications involving thin or soft materials.
Why Choose This Product
- Large outside diameter improves load distribution
- Protects surfaces from fastener pressure damage
- Black oxide finish provides clean appearance
- Suitable for general industrial applications
- Stable carbon steel mechanical performance
- Cost-effective fastening solution
- Available in various sizes
- OEM customization support
The black oxide fender washer provides a practical solution for applications requiring wider support and reliable fastening.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Advanced metal stamping and finishing capability
- Experience with customized washer production
- OEM/ODM support for industrial customers
- Stable production capacity for bulk orders
- Strict quality inspection procedures
- Global export experience
- Engineering support for special requirements
Flybear provides reliable fastening products for distributors, OEM manufacturers, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout the production process:
- Raw material chemical composition analysis
- Material certificate verification
- Inner and outer diameter inspection
- Thickness measurement
- Flatness inspection
- Black oxide coating inspection
- Surface appearance checking
- Packaging quality verification
All production processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a black oxide fender washer, consider:
- Bolt or screw size compatibility
- Required bearing surface area
- Material thickness being fastened
- Load distribution requirements
- Indoor or outdoor operating environment
- Required corrosion protection level
Proper selection improves fastening stability and prevents surface damage.
FAQ
1. What is a black oxide fender washer used for?
It is used to distribute fastening loads over a larger area and protect thin materials from damage.
2. What is the advantage of a fender washer design?
The large outer diameter provides better support compared with standard flat washers.
3. Does black oxide provide corrosion resistance?
Yes, black oxide improves surface protection, but additional protection may be needed for harsh outdoor environments.
4. Can custom sizes be produced?
Yes, Flybear supports customized dimensions, thicknesses, and packaging.
5. What materials can fender washers be made from?
Common materials include carbon steel, stainless steel, and other alloys.
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.
