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Welcome to Anping County Boli Hardware Wiremesh Products Factory, your trusted partner for high-quality fastening solutions since 1998. Our Double Coil Spring Washer for Automotive Suspension Systems is engineered to deliver superior anti-shake locking performance, ensuring the stability and safety of your vehicle's suspension components. With years of expertise in manufacturing precision hardware, we offer a product that combines durability, reliability, and cost-effectiveness, tailored to meet the rigorous demands of the automotive industry.
This double coil spring washer is specifically designed to prevent loosening under dynamic loads and vibrations, making it an essential component for automotive suspension systems, chassis assemblies, and heavy-duty machinery. Its unique double-coil structure provides enhanced spring force and locking efficiency compared to standard single-coil washers, effectively reducing the risk of fastener failure.
Key Features & Technical Specifications
- Anti-Shake Locking Design: The double coil configuration creates a powerful spring action that maintains constant tension, resisting loosening from vibration and shock.
- High-Strength Material: Manufactured from premium spring steel (e.g., 65Mn, 60Si2Mn), offering excellent elasticity and fatigue resistance.
- Precise Dimensional Tolerances: Produced with CNC-controlled winding and heat treatment processes to ensure consistent dimensions and reliable performance.
- Customizable Surface Finishes: Available in zinc plating, black oxide, phosphating, or other coatings to enhance corrosion resistance and meet specific environmental requirements.
- Wide Size Range: Suitable for bolts from M6 to M50, with inner diameters from 6mm to 50mm, outer diameters up to 80mm, and thicknesses from 1.5mm to 8mm.
- Heat Treatment: Optional hardness range of HRC 38-48 to balance strength and ductility.
Technical Parameters (Typical Range)
| Parameter | Value Range | Notes |
|---|---|---|
| Material | Spring Steel (65Mn, 60Si2Mn, or equivalent) | Customizable upon request |
| Inner Diameter (ID) | 6 mm – 50 mm | Other sizes available |
| Outer Diameter (OD) | 12 mm – 80 mm | Customizable |
| Thickness (T) | 1.5 mm – 8 mm | Dependent on size |
| Hardness | HRC 38 – 48 (optional) | Can be adjusted |
| Surface Treatment | Zinc, black oxide, phosphating, etc. | Customized to environment |
Advantages & Customer Benefits
- Enhanced Safety: Our double coil design ensures that suspension bolts remain securely fastened, reducing the risk of component detachment during operation.
- Long Service Life: High-quality spring steel and precise heat treatment provide excellent fatigue resistance, extending the maintenance interval.
- Cost-Effective Solution: Direct manufacturer pricing and efficient production processes allow us to offer competitive pricing without compromising quality.
- Flexible Customization: We can produce washers according to your drawings or samples, with custom dimensions, surface finishes, and packaging.
- Reliable Supply Chain: As a factory with over 25 years of experience, we ensure stable lead times and consistent quality, backed by our annual export value of US$5–10 million.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
Established in 1998, we have grown into a reliable manufacturer serving global markets including North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports such as Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics. With a strong focus on quality control and customer satisfaction, we have maintained long-term partnerships with clients in the automotive, construction, and machinery sectors. Our double coil spring washer is a testament to our commitment to innovation and excellence.
Frequently Asked Questions (FAQ)
-
What is the difference between a double coil spring washer and a standard single coil washer?
The double coil design provides two spring arms, generating higher preload and better resistance to vibration loosening, making it ideal for demanding applications like automotive suspensions. -
Can you produce washers with custom dimensions?
Yes, we can customize inner diameter, outer diameter, thickness, and material to meet your specific requirements. Please provide drawings or specifications. -
What surface treatments are available for corrosion protection?
Common options include zinc plating, black oxide, phosphating, hot-dip galvanizing, and Dacromet coating. We can also apply other treatments upon request. -
What is the typical lead time for orders?
Standard sizes are usually shipped within 15–20 days after order confirmation. Custom orders may require 25–35 days depending on complexity. -
Do you provide samples for testing?
Yes, we offer free samples for existing products. You only need to cover the shipping cost. Custom samples are available at a nominal fee. -
How do you ensure product quality?
We have a strict quality control system including incoming material inspection, in-process checks, and final dimension/function testing. Each batch is traceable. -
What is your minimum order quantity (MOQ)?
For standard sizes, MOQ is 5000 pieces. For custom sizes, MOQ may vary. Contact us for details. -
Can you help with assembly or packaging requirements?
Absolutely. We can provide custom packaging (boxes, pallets, shrink wrap) and even pre-assembly if needed.
Ready to enhance the stability of your automotive suspension systems? Contact Anping County Boli Hardware Wiremesh Products Factory today for a competitive quote. With our decades of manufacturing expertise, global shipping capabilities, and commitment to quality, we are your ideal partner for double coil spring washers and other fastening solutions.
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