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Help CenterPrecision Double Coil Spring Washer DIN 127 B Size Range 3mm to 12mm Thickness
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Precision Double Coil Spring Washer DIN 127 B – manufactured by Anping County Boli Hardware Wiremesh Products Factory, a trusted factory established in 1998 with an annual export value of US$5 – US$10 million. Our washers are engineered to meet the exacting standards of DIN 127 B, providing reliable locking performance in demanding applications. With a thickness range from 3mm to 12mm, these double coil spring washers offer superior elasticity and vibration resistance, ensuring your assemblies remain secure under dynamic loads.
Product Features & Benefits
- Double Coil Design – Provides enhanced spring force and locking action compared to single coil washers, reducing the risk of loosening under vibration.
- Precision Manufacturing – Tight tolerances on thickness, inner diameter, and outer diameter ensure consistent performance and easy installation.
- High-Quality Spring Steel – Made from materials like 65Mn or 60Si2Mn for excellent fatigue resistance and long service life.
- DIN 127 B Compliant – Meets the dimensional and mechanical requirements of the German standard, widely accepted in global markets.
- Wide Thickness Range (3mm – 12mm) – Suitable for various bolt sizes and clamping loads, from M3 to M12 or equivalent.
- Surface Treatment Options – Available in zinc plated, black oxide, phosphating, or other finishes to enhance corrosion resistance and appearance.
- Customizable Dimensions – We can adjust inner diameter, outer diameter, and thickness per your specific requirements.
- Cost-Effective Solution – Direct factory pricing with reliable quality control reduces your procurement costs.
Technical Specifications
| Parameter | Value |
|---|---|
| Standard | DIN 127 B (Double Coil) |
| Thickness Range | 3mm – 12mm (customizable) |
| Material | Spring Steel (65Mn, 60Si2Mn, 50CrVA, etc.) |
| Hardness | HRC 40-50 (typical) |
| Surface Finish | Zinc Plated, Black Oxide, Phosphating, Dacromet, etc. |
| Inner Diameter | Custom per request (e.g., 3.2mm for M3, 12.5mm for M12) |
| Outer Diameter | Custom per request |
| Packing | Bulk in cartons, poly bags, or custom packaging |
Typical Applications: These washers are widely used in automotive assemblies, agricultural machinery, construction equipment, industrial fasteners, and anywhere reliable locking is required under dynamic or vibrating conditions. The double coil construction provides a higher spring force than standard single coil washers, making them ideal for heavy-duty clamping.
Why Choose Anping Boli?
Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been a dedicated manufacturer of high-quality hardware products. With an annual export value of US$5 to US$10 million, we supply to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our manufacturing facility in Hengshui, Hebei, allows us to produce precision spring washers at competitive prices while maintaining strict quality control. From raw material inspection to final packaging, every step is monitored to ensure your products meet the highest standards.
We offer flexible shipping options via major ports including Tianjin, Qingdao, Shanghai, and Foshan. Our experienced team is ready to assist with custom sizes, special surface treatments, and packaging requirements. Whether you need a small batch for prototyping or a large container order, we can deliver on time and within budget.
Contact us today to request a quote or sample. Let us be your reliable partner for precision spring washers and other industrial fasteners.
Frequently Asked Questions (FAQ)
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Q: What is the difference between DIN 127 A and DIN 127 B?
A: DIN 127 A is a single coil spring washer, while DIN 127 B is a double coil design. The double coil provides higher spring force and better locking performance under severe vibration. -
Q: Can I order washers with a thickness outside the 3mm–12mm range?
A: Yes, we can customize the thickness to meet your specific requirements. Please contact us with your desired dimensions. -
Q: What materials are available?
A: We commonly use 65Mn, 60Si2Mn, and 50CrVA spring steel. Other materials like stainless steel or copper alloys are available upon request. -
Q: What surface finishes do you offer?
A: We provide zinc plating, black oxide, phosphating, Dacromet, and other finishes. Choose based on corrosion resistance needs and appearance. -
Q: Do you provide samples? How can I get them?
A: Yes, we can supply samples for evaluation. Please contact our sales team with your shipping details and quantity requirements. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ depends on size and surface treatment. For standard sizes, MOQ is typically 10,000 pieces. For custom orders, please inquire. -
Q: How do you ensure quality?
A: We perform dimensional checks, hardness testing, and visual inspection on every batch. Our quality control system follows industry standards. -
Q: What ports do you ship from?
A: We ship from Tianjin, Qingdao, Shanghai, and Foshan. We can also arrange door-to-door delivery if required.
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