DIN25201 Carbon Steel Dacromet Double Fold Self Locking Washer
DIN25201 carbon steel Dacromet double fold self locking washer is a high-performance anti-loosening fastening component designed for secure bolted connections under vibration and dynamic loads. The DIN25201 carbon steel Dacromet double fold self locking washer features a double-layer wedge locking structure that generates increased clamping force when bolt tension changes, helping prevent fasteners from loosening during operation.
Manufactured from carbon steel with a Dacromet surface coating, the DIN25201 carbon steel Dacromet double fold self locking washer provides excellent mechanical strength and improved corrosion resistance. It is widely used in automotive equipment, heavy machinery, railway systems, wind power equipment, construction machinery, and industrial assemblies exposed to vibration.
Product Overview
The DIN25201 carbon steel Dacromet double fold self locking washer is engineered for applications where traditional flat washers and spring washers may not provide sufficient anti-loosening performance. Its wedge locking design uses two washers with inclined surfaces on one side and radial ribs on the opposite side to secure bolted joints.
When external forces cause bolt tension changes, the DIN25201 carbon steel Dacromet double fold self locking washer increases the locking effect through the wedge principle. This design helps maintain joint reliability in high-vibration and heavy-duty environments.
As a specialized industrial fastener accessory, it is widely selected by OEM manufacturers, equipment suppliers, and engineering companies requiring reliable vibration-resistant fastening solutions.
Product Specifications
| Item | Description |
|---|---|
| Standard | DIN25201 |
| Product Name | Carbon Steel Dacromet Double Fold Self Locking Washer |
| Material | Carbon Steel |
| Washer Type | Double Fold Wedge Lock Washer |
| Surface Treatment | Dacromet Coating |
| Structure | Two-Piece Self Locking Washer |
| Size Range | M3–M42 |
| Inner Diameter | According to DIN25201 Standard |
| Outer Diameter | According to DIN25201 Standard |
| Installation Type | Bolt and Nut Assembly |
| Locking Method | Wedge Locking Principle |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, coating, packaging available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material Grade | Carbon Steel |
| Tensile Strength | According to material grade |
| Hardness | Typically controlled for locking performance |
| Surface Coating | Dacromet Zinc-Aluminum Coating |
| Corrosion Resistance | Excellent compared with untreated steel |
| Wear Resistance | Good |
| Vibration Resistance | Excellent |
| Manufacturing Standard | DIN25201 |
Materials and Manufacturing Process
The DIN25201 carbon steel Dacromet double fold self locking washer is manufactured through precision stamping and surface treatment processes to achieve reliable locking performance.
- Raw material selection: High-quality carbon steel strip
- Stamping process: Precision forming of wedge lock washer geometry
- Pair matching: Ensures correct double washer assembly
- Heat treatment: Improves strength and hardness when required
- Surface preparation: Cleaning before coating
- Dacromet coating: Zinc-aluminum protective coating application
- Inspection: Dimension, hardness, coating, and locking performance testing
- Packaging: Protective packaging to maintain paired washer assembly
Each DIN25201 carbon steel Dacromet double fold self locking washer is produced under strict quality control to ensure stable anti-loosening performance.
Applications of the Product
The DIN25201 carbon steel Dacromet double fold self locking washer is widely used across industries requiring vibration resistance:
- Automotive industry: Engine systems, chassis components, and vehicle assemblies
- Railway equipment: High-vibration fastening applications
- Wind power systems: Tower and equipment connections
- Construction machinery: Heavy equipment fastening systems
- Agricultural machinery: Dynamic load assemblies
- Industrial machinery: Motor and gearbox connections
- Automation equipment: Precision mechanical assemblies
- Energy equipment: Long-term outdoor fastening applications
Its wedge locking structure makes it suitable for critical joints exposed to vibration and shock.
Why Choose This Product
- DIN25201 standard compatibility
- Excellent anti-loosening performance
- Suitable for high vibration environments
- Dacromet coating provides corrosion protection
- Carbon steel provides reliable mechanical strength
- Maintains bolt preload stability
- Reusable in suitable applications
- Suitable for heavy-duty equipment
- OEM customization support
The DIN25201 carbon steel Dacromet double fold self locking washer provides a reliable solution for preventing bolt loosening in demanding 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 locking washer production
- OEM/ODM customization support
- Stable production capacity for industrial orders
- Strict quality inspection procedures
- Global export experience
- Engineering support for customized applications
Flybear provides reliable fastening products for automotive, machinery, energy, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- Raw material chemical composition analysis
- Material certificate verification
- Washer dimension inspection
- Hardness testing
- Dacromet coating thickness inspection
- Surface quality inspection
- Locking performance verification
- Packaging inspection
All manufacturing processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a DIN25201 carbon steel Dacromet double fold self locking washer, consider:
- Bolt size compatibility
- Vibration level of the application
- Required locking performance
- Working environment conditions
- Corrosion protection requirements
- Bolt material compatibility
Proper selection ensures long-term fastening reliability and reduces maintenance requirements.
FAQ
1. What is DIN25201 double fold self locking washer used for?
It is used to prevent bolt loosening in assemblies exposed to vibration and dynamic loads.
2. How does a DIN25201 washer prevent loosening?
It uses a wedge locking principle that increases clamp force when the joint experiences movement.
3. What is Dacromet coating?
Dacromet is a zinc-aluminum protective coating that provides improved corrosion resistance.
4. Can DIN25201 washers be customized?
Yes, Flybear supports customized sizes, coatings, and packaging requirements.
5. What industries use wedge lock washers?
They are widely used in automotive, railway, wind power, construction machinery, and industrial equipment.
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.
