Carbon Steel Large Plain Washer DIN7349
Product Overview
Large Plain Washer DIN7349 is a critical component within the world of heavy-duty fastening applications. As a type of flat washer, it is designed to distribute load or reduce wear on the mating surface. It comes in larger outer diameters compared to standard flat washers and complies with the DIN 7349 standard specification. Manufactured from high-quality carbon steel, it is ideal for structural and mechanical applications that involve high stress and pressure.
At Flybear Fastener, we ensure the highest levels of precision and durability in our fastening solutions. Our Large Plain Washers come in a variety of dimensions and can be customized according to project-specific requirements. Whether for industrial, construction, or machine assembly, these washers offer reliable load distribution and surface protection.
Product Specification Table
| Specification | Detail |
|---|---|
| Product Name | Large Plain Washer |
| Standard | DIN 7349 |
| Material | Carbon Steel |
| Surface Finish | Plain / Zinc Plated / HDG |
| Outer Diameter (OD) | Custom sizes available |
| Inner Diameter (ID) | M3 to M30+ based options |
| Thickness | As per DIN7349 |
| Hardness | Depending on application needs |
Technical Parameters
| Parameter | Value Range |
|---|---|
| Tensile Strength | 400-800 MPa |
| Operating Temperature | -50°C to 300°C |
| Corrosion Resistance | Medium (Improved when plated) |
| Surface Coating Options | Zinc-plated, Black Oxide, Hot-dip Galvanized |
| Manufacturing Tolerances | As per DIN7349 tolerance level |
| Heat Treatment | On Request (High Hardness Assortments) |
Material Introduction & Manufacturing Process
Our Large Plain Washers are made from top-grade carbon steel, which offers a strong balance between cost-effectiveness and mechanical durability. The carbon steel undergoes several quality processes to ensure strength and uniformity.
Manufacturing flow includes:
- Material Selection and Inspection
- Precision Stamping or Machining
- Deburring and Edge Rounding
- Heat Treatment (if needed)
- Surface Coating (Zinc/Black/HDG)
- Final Inspection and Sorting
- Packaging & Inventory
The advanced machines and highly-skilled workforce used at Flybear Fastener ensure repeatable, high-precision production.
Applications in Industries and Environments
Large Plain Washers DIN7349 are widely used in:
- Construction and Steel Structural Connections
- Automotive Assembly (especially heavy vehicles and trailers)
- Industrial Machinery and Equipment Mounting
- Energy and Power Generation Installations
- Agricultural Machinery
- Wind and Solar Power Projects
Their large outer diameter and standard compliance make them ideal for protecting surfaces and distributing high tensile loads across fragile materials.
Advantages and Competitive Edge
Choosing plain washers from Flybear Fastener comes with several benefits:
- Premium Materials: Only high-grade carbon steel is used to ensure performance under tension and vibrations.
- Precision Engineered: Each washer meets DIN7349 tolerance with consistent sizing and threading compatibility.
- Advanced Surface Finish: Whether it’s zinc-plated for indoor use or hot-dip galvanized for outdoor durability, we provide reliable anti-corrosion finishes.
- Customization Available: Whether it’s specific hardness, ID/OD, or plating, we offer bespoke manufacturing based on project drawings.
- Always In Stock: Robust inventory management allows timely delivery within tight project schedules.
- Technical Support: Our engineering team offers Reverse Engineering and Application Consultation for optimized performance.
Quality Inspection & Control
At Flybear Fastener, every batch of washers goes through rigorous quality checks including:
- Dimensional Accuracy Testing
- Material Composition Verification (Spectro Analysis)
- Surface Finish Assessment
- Hardness Testing
- Salt Spray Testing (for corrosion performance)
- Batch Traceability through Serial Numbering
We maintain full compliance with ISO 9001 standards, ensuring consistent quality in every unit.
Selection Guide & Purchasing Tips
When choosing the right Large Plain Washer, customers should consider:
- Thread size (M6-M36 or above)
- Application load and environment exposure
- Surface treatment requirements (e.g., corrosion resistance)
- Compliance with DIN7349 or equivalent industry standards
For special environments such as marine or chemical plants, opt for hot-dip galvanized finish for improved protection.
Pricing varies based on size, finish, treatment, and batch size. For larger orders or specific design requirements, consult our specialists.
Conclusion & Company Promotion
In conclusion, Large Plain Washers DIN7349 made from premium carbon steel are integral components in high-tension assemblies. Their function in distributing loads, protecting surfaces, and maintaining structural integrity makes them essential in industrial applications.
At Flybear Fastener, we adhere to the philosophy of “quality first, customer foremost,” and focus on delivering high-performance fastener products complemented by one-stop solutions tailored to our clients’ diverse projects.
We welcome you to explore our complete range of precision-engineered washers and fastening components. For technical consultation or to obtain quotes, please do not hesitate to contact us. Choose strength. Choose reliability. Choose Flybear Fastener.
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