Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Flat Washer |
| Standard | DIN 988 |
| Size | Metric |
| Material | Carbon Steel / Stainless Steel |
| Inner Diameter | Standard / Custom |
| Outer Diameter | Standard / Custom |
| Thickness | Standard / Custom |
| Tolerance | Standard / Drawing-Based |
| Surface Treatment | Zinc Plating / Phosphating / Other Specified Finish |
| Hardness | According to Material & Application |
| Production | Standard / OEM / Drawing-Based |
Product Advantages
Metric flat washers provide a defined bearing interface between the fastener and mating component during tightening.
Increased Bearing Area:
Spreads the load from the bolt head or nut over a larger contact surface.
Reduced Local Pressure:
Helps limit indentation or embedding in softer materials.
Controlled Fastener Contact:
Creates a consistent interface between the fastener and mating surface.
Surface Protection:
Helps reduce direct metal-to-surface contact and damage during tightening.
Metric Washer Size & Fastener Fit
Metric washer dimensions should be matched to the fastener size and the actual bearing surface of the assembly.
- Inner Diameter: Provides the required clearance around the metric bolt or screw without interfering with installation.
- Outer Diameter: Selected according to the available bearing surface and the required load distribution area.
- Thickness: Determined by the required support, assembly clearance, and washer standard.
- Fastener Compatibility: Washer dimensions are matched to the metric fastener size and applicable dimensional standard.
Material & Surface Treatment Options
Material and surface treatment are selected according to mechanical requirements, corrosion exposure, and the service environment.
Carbon Steel:
Suitable for general mechanical fastening and standard industrial assemblies.
Stainless Steel:
Selected for applications requiring improved corrosion resistance, particularly in moisture or outdoor environments.
Zinc Plating:
Provides additional corrosion protection for carbon steel washers in general industrial applications.
Phosphating & Other Finishes:
Available when specific surface protection, friction characteristics, or customer specifications are required.
Custom Metric Washer Manufacturing
We manufacture metric washers according to customer drawings, samples, applicable standards, or specified technical requirements.
Custom Dimensions:
ID, OD, thickness, and dimensional tolerances can be produced according to requirements.
Material Options:
Carbon steel, stainless steel, and specified material grades are available.
Drawing-Based Production:
Manufacturing follows customer drawings, samples, dimensional specifications, and inspection requirements.
OEM & Bulk Supply:
Supports prototype development, repeat orders, and high-volume production with customized packaging options.
Metric Washer Manufacturing & Quality Control
Our production process combines controlled forming and dimensional inspection to maintain consistent washer geometry throughout batch production.
Stamping:
Forms the specified ID, OD, and washer profile from the selected material.
Heat Treatment:
Applied when required to achieve the specified mechanical properties and hardness.
Surface Treatment:
Zinc plating, phosphating, or other specified finishes are applied according to the application requirements.
Trusted by Global Industrial Customers
Our washers are widely supplied to OEM manufacturers, industrial equipment producers, and global distributors across automotive, machinery, and engineering industries. With stable quality, consistent production, and reliable supply capability, we support long-term cooperation and help customers improve fastening reliability and overall assembly performance.
FAQ
Can you provide metric washers in custom sizes?
Yes, we offer OEM and custom manufacturing for inner diameter, outer diameter, thickness, and tolerance according to drawings or samples.
What materials are available for your washers?
We provide carbon steel, stainless steel, and other grades suitable for different strength, corrosion resistance, and environmental requirements.
Are your washers suitable for outdoor or high-humidity environments?
Yes, with appropriate material and surface treatment, our washers are resistant to corrosion and wear, ideal for indoor, outdoor, and humid conditions.
Can you support large-volume industrial orders?
Absolutely. Our production system ensures stable batch quality and reliable supply for OEM and bulk orders.
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