Plain Washers DIN125A: Stainless Steel with Black Oxide Finish
Product Overview
Plain washers DIN125A are essential components widely used to distribute loads of threaded fasteners such as bolts and screws. The washers help prevent surface damage during tightening and reduce the risk of bolts loosening under vibration or environmental changes. These washers are manufactured according to DIN125A standards, known for their precision dimensions and reliability in mechanical applications. Flybear Fastener offers high-quality stainless steel plain washers with black oxide finish, ensuring superior performance in both industrial and commercial environments.
Product Specification Table
| Specification | Value |
|---|---|
| Standard | DIN125A |
| Material | Stainless Steel |
| Finish | Black Oxide |
| Inner Diameter (ID) | 2 mm – 30 mm |
| Outer Diameter (OD) | 5 mm – 60 mm |
| Thickness | 0.5 mm – 5 mm |
| Tolerance | As per DIN125A specification |
| Surface Treatment Type | Chemical Black Oxidation |
Technical Parameters
| Property | Description |
|---|---|
| Hardness | HRC 20-30 |
| Tensile Strength | ≥ 550 MPa |
| Corrosion Resistance | Excellent (especially after coating) |
| Magnetic Properties | Non-magnetic |
| Working Temperature | -50℃ to +300℃ |
Material & Manufacturing Process
These plain washers DIN125A are manufactured from premium-grade stainless steel, specifically designed to offer great resistance to corrosion and environmental wear. The process begins with the selection of stainless steel coils which are then punch-pressed into precise washer shapes. Post forming, washers undergo a deburring process to eliminate sharp edges and increase safety.
To enhance surface protection and aesthetic appearance, a black oxide finish is applied. This surface treatment not only adds a sleek look but also provides a mild corrosion resistance and reduces light reflection.
Key features of the production process:
- Material Selection: Corrosion-resistant stainless steel
- Precision Stamping: High tolerance level
- Surface Treatment: Immersion in alkaline oxidizing solution for black oxide finish
Typical Applications & Industries
The Stainless Steel Plain Washers DIN125A with Black Oxide coating are suitable for various industries and demanding environments such as:
- Automotive engineering
- Aerospace assemblies
- Marine constructions
- Machinery and mechanical equipment
- Renewable energy installations
- Architectural and construction sectors
These washers prevent pulling through, enhance torque performance, and improve fastener load-bearing capacity which makes them ideal for vibration-prone or structurally critical applications.
Product Advantages & Competitive Edge
High Material Quality
Crafted from high-grade stainless steel, the washers provide excellent resistance to rust, corrosion, and environmental degradation — a perfect choice for aggressive environments.
Precision Engineering
The Plain Washers DIN125A specification ensures tight tolerances, consistent dimensions, and smooth load distribution — reducing the risk of fastener failure.
Advanced Surface Treatment
The chemically-treated black oxide finish not only improves appearance but also offers additional corrosion resistance, making it suitable for both indoor and outdoor use.
Custom Manufacturing Capabilities
Flybear Fastener is capable of mass-producing washers tailored to specific dimensions, finishes, or performance needs. Drawings or samples are welcome for custom builds.
Sufficient Inventory & Quick Dispatch
We maintain an extensive inventory of standard sizes ready to ship, ensuring short lead times and high availability.
Reliable Technical & After-Sales Support
Our team provides expert assistance throughout the ordering process and after sales, ensuring all your fastening needs are met efficiently.
Inspection & Quality Control
Every batch of washers produced by Flybear Fastener undergoes rigorous testing and inspection:
- Dimensional verification with precision measurement tools
- Salt spray testing for corrosion resistance
- Hardness testing to ensure mechanical performance
- Surface finish inspection
This level of quality assurance supports our commitment to achieving zero-defect manufacturing and customer satisfaction.
Selection & Purchasing Guide
When selecting plain washers, consider the following:
- Confirm DIN125A compliance for consistency across components.
- Choose stainless steel with appropriate finishes for the intended environment.
- Verify washer dimensions (ID, OD, thickness) to match fasteners.
- Assess operational conditions like temperature, torque, and vibration.
Flybear Fastener supports you through the selection and purchasing process. You may also consider combining these washers with bolts or nuts from our extensive product catalog to ensure complete compatibility.
Conclusion and Company Promotion
By choosing Flybear Fastener, you’re ensuring your assemblies are supported by components that offer integrity, durability, and performance. We follow the philosophy of “Quality First, Customer Foremost” and remain committed to providing high-quality fastener products and one-stop solutions for your projects. Visit our website to discover more of our fasteners, explore technical resources, or contact us for tailored solutions and quotes suited to your industry.
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