Zinc Plated Plain Washer
Zinc plated plain washer is a reliable fastening accessory designed for load distribution, surface protection, and improved corrosion resistance in general industrial applications. The zinc plated plain washer is manufactured from carbon steel with an electro galvanized or zinc plated surface finish, providing a protective coating against oxidation and environmental exposure.
The zinc plated plain washer features a flat ring structure that increases the bearing area between fasteners and connected components, helping reduce surface damage and improve fastening stability. It is widely used in machinery, construction, automotive assemblies, electrical equipment, and general manufacturing systems requiring economical and corrosion-resistant fastening solutions.

Product Overview
The zinc plated plain washer is engineered to improve the performance of bolted connections by evenly distributing clamping pressure. It helps prevent bolt heads and nuts from damaging the surface of assembled parts while improving joint reliability.
Compared with untreated carbon steel washers, the zinc plated plain washer provides better protection against rust and oxidation through its zinc coating. It offers a cost-effective solution for applications in indoor environments and general industrial conditions.
As a commonly used industrial fastener accessory, it is widely supplied to OEM manufacturers, distributors, machinery builders, and engineering companies.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Zinc Plated Plain Washer |
| Material | Carbon Steel |
| Washer Type | Plain Washer |
| Surface Treatment | Zinc Plated / Electro Galvanized |
| 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 Standard or Drawing |
| Surface Finish | Zinc Plated Silver Finish |
| Installation Type | Bolt and Screw Assembly |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, coating 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 |
| Corrosion Resistance | Improved by zinc coating |
| Wear Resistance | Good |
| Coating Type | Electro Zinc Plating |
| Manufacturing Standard | DIN / ISO / ANSI / Customized |
Materials and Manufacturing Process
The zinc plated plain washer is manufactured through precision metal processing and surface treatment technology to ensure accurate dimensions and reliable performance.
- Raw material selection: High-quality carbon steel sheet or coil
- Stamping process: Precision punching to form washer geometry
- Hole processing: Accurate inner diameter production
- Edge finishing: Removal of burrs and sharp edges
- Cleaning process: Removal of oil and surface contaminants
- Electro zinc plating: Application of protective zinc coating
- Drying and inspection: Coating thickness and surface quality verification
- Packaging: Protective industrial packaging for transportation
Each zinc plated plain washer is produced under strict quality control to ensure consistent dimensions and coating quality.
Applications of the Product
The zinc plated plain washer is widely used across various industries:
- Machinery manufacturing: General equipment assembly
- Automotive industry: Vehicle component fastening
- Construction industry: Building and structural connections
- Electrical equipment: Panel and enclosure installation
- Furniture hardware: General assembly applications
- Industrial equipment: Mechanical fastening systems
- Automation equipment: Component mounting solutions
- OEM manufacturing: Standard fastening applications
Its zinc coating provides suitable corrosion protection for many indoor and light-duty outdoor applications.
Why Choose This Product
- Economical carbon steel construction
- Zinc coating improves corrosion resistance
- Reliable load distribution performance
- Protects connected surfaces from damage
- Compatible with common bolts and screws
- Available in various sizes and standards
- Suitable for high-volume industrial supply
- Stable dimensional accuracy
- OEM customization support
The zinc plated plain washer provides a practical and cost-effective fastening solution for general industrial applications.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Advanced stamping and surface treatment capability
- Experience with standard and customized washers
- OEM/ODM production support
- Stable manufacturing 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 the production process:
- Raw material chemical composition analysis
- Material certificate verification
- Inner and outer diameter inspection
- Thickness measurement
- Flatness inspection
- Zinc coating thickness testing
- 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 zinc plated plain washer, consider:
- Bolt or screw size compatibility
- Required load distribution area
- Corrosion protection requirements
- Indoor or outdoor application environment
- Coating thickness requirements
- Fastener material compatibility
Proper selection improves fastening stability and extends assembly service life.
FAQ
1. What is a zinc plated plain washer used for?
It is used to distribute fastening loads and protect surfaces in bolted connections.
2. Why choose zinc plated washers instead of plain steel washers?
Zinc plating provides additional protection against rust and oxidation.
3. Are zinc plated washers suitable for outdoor applications?
They are suitable for light outdoor use, while harsher environments may require hot dip galvanized or stainless steel options.
4. Can custom sizes be produced?
Yes, Flybear supports customized dimensions, coatings, and packaging.
5. What standards are available for zinc plated washers?
Common standards include DIN, ISO, ANSI, and customized specifications.
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.




