Our premium Carbon Steel DIN125 Flat Washers are precision-engineered to provide superior load distribution and sealing performance for industrial applications. Manufactured from high-grade carbon steel and available in Grade 4.8, these washers serve as critical components in pressure vessels, tanks, towers, and valve covers, ensuring a leak-proof seal in bolted flange joints.
Designed to meet rigorous national standards (GB95, GB96, GB97 series), these fasteners are particularly effective for the chemical and petrochemical industries. Whether you require white zinc plating for corrosion resistance or plain/black finishes for specific environmental needs, our washers ensure structural integrity and prevent the leakage of internal media in high-pressure pipe containers.
Detailed Parameters
| Product Name | Flat Washer | Standard | DIN125 / GB95 / GB96 / GB97 |
|---|---|---|---|
| Material | Carbon Steel | Grade | Grade 4.8 |
| Surface Treatment | White Zinc Plated / Plain / Black | Size Range | M3 - M56 |
| Application | Pressure Vessels, Tanks, Valves | Function | Sealing & Load Distribution |
| Industry Focus | Chemical & Petrochemical | Manufacturing | Precision Machining |
Key Advantages
Corrosion Resistance
High-quality white zinc plating provides an essential protective barrier against oxidation and rust.
Industrial Durability
Engineered for long-term stability in harsh chemical and petrochemical environments.
Precision Fit
Strict adherence to DIN and GB standards ensures perfect compatibility with bolted joints.
Leak Prevention
Optimized flat surface design prevents the leakage of internal media in flange joints.
Wide Versatility
Available in a comprehensive size range from M3 to M56 to suit any engineering requirement.
Cost-Effective
Factory-direct pricing ensures high-grade industrial quality without the premium markup.
Product Gallery
Management Platforms
Quality Control
Rigorous inspection of raw carbon steel to ensure Grade 4.8 compliance.
Precision Machining
Advanced CNC technology for exact DIN125 dimensional accuracy.
Surface Treatment
Controlled plating processes for uniform white zinc coating thickness.
Inventory Logistics
Efficient stock management for M3-M56 sizes to ensure rapid shipping.
Standard Compliance
Strict adherence to GB and DIN international fastener standards.
Order Customization
Flexible production capacities for bulk industrial specifications.
Investment Return Comparison
| Feature | Standard Washers | Our Premium DIN125 | Business Impact |
|---|---|---|---|
| Seal Reliability | Moderate | High Precision | Lower Leakage Risk |
| Corrosion Life | Standard | Extended (Zinc Plated) | Reduced Maintenance |
| Fit Accuracy | Variable | Strict DIN Standard | Faster Installation |
| Material Stability | Generic Steel | Certified Grade 4.8 | Enhanced Safety |
| Total Cost (TCO) | Lower Initial | Optimized Value | Lower Long-term Cost |
Frequently Asked Questions
DIN125 is a specific international standard that defines the precise dimensions and tolerances for flat washers, ensuring they provide consistent load distribution and compatibility across global industrial equipment.
White zinc plating provides a sacrificial layer of protection that prevents the underlying carbon steel from rusting, making it ideal for moderately corrosive environments in petrochemical plants.
Yes, they are specifically designed for sealing pressure vessels and tanks. When used in bolted flange joints, they help prevent the leakage of internal media.
We offer a comprehensive range of sizes starting from M3 up to M56 to accommodate everything from small electronics to heavy industrial machinery.
While this specific product is carbon steel, we also manufacture fasteners in stainless steel, aluminum, and copper to meet various chemical compatibility requirements.
Grade 4.8 indicates the tensile strength of the steel. It is suitable for general-purpose industrial applications. For extreme high-tension requirements, please contact our engineers for higher grade options.
