DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
Price:
Negontiation
MOQ:
50000
Delivery Time:
7-25Days
Brand:
YONGBIAO
Product Description
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36
High-quality German-standard curved spring washer designed to prevent bolt and nut loosening under vibration and dynamic loads. Factory direct pricing ensures competitive value.
Product Overview
The DIN137 Saddle Spring Washer (also known as Curved Spring Washer or Domed Spring Washer) is a precision-engineered fastening component that maintains preload between bolted connections to effectively prevent loosening caused by vibration and shock loads.
Key Features
- Excellent Anti-Loosening Performance - Curved/wave design provides consistent spring force that maintains preload between bolted connections
- Precision Manufacturing - 100% dimensional inspection ensures outer diameter tolerance ±0.05mm, thickness ±0.02mm, and parallelism ≤0.03mm
- Superior Material Quality - Made from quenched and tempered spring steel (65Mn/50CrV4) or high-grade stainless steel with hardness of HRC 40-51
- Wide Application Range - Suitable for automotive, machinery, construction, electronics, aerospace, railway, marine, and food processing industries
- Multiple Finishes - Available in plain, black oxide, zinc plated (yellow/blue-white), Dacromet, and custom colors
- Corrosion Resistance - Stainless steel A2/A4 options provide excellent resistance to rust and corrosion
Technical Specifications
| Specification | Details |
|---|---|
| Measurement System | INCH, Metric |
| Standard | DIN, ANSI, GB, JIS, BSW, GOST |
| Process | Cold Forging |
| Finish | Zinc Plated |
| Load Capacity | Medium Duty |
| Usage | For Fastening Metal To Metal |
| HS Code | 7318151001 |
Customization Services
We offer comprehensive OEM and ODM services to meet your specific requirements:
- Custom head styles, drive types (Phillips H / Pozidriv Z), and thread designs
- Special lengths, diameters, and tolerances
- Specific material grades and surface finishes
- Custom packaging with your branding (labels, boxes, bags, blister packs)
- Logo engraving on screw heads
Why Choose Us
- Professional fastener manufacturer with over 10 years of export experience
- Advanced automatic cold heading and thread rolling equipment ensuring consistent quality
- Strict quality control system from raw material sourcing to finished product
- Competitive factory-direct pricing with no middlemen
- Responsive customer service and technical support
- Flexible MOQ to accommodate both trial orders and bulk shipments
Contact Information
Email: rainting@ybfasteners.com
Product Images
Packaging Options
Bolts are packed in neutral packaging boxes with standard quantities arranged in small cartons. Custom packaging configurations are available upon request. Small cartons are consolidated into larger master cartons for secure transportation. Palletized units are wrapped with waterproof film and reinforced with packaging straps, with custom shipping marks available.
Packaging Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
NINGBO YONGBIAO FASTENER CO.,LTD
Location
No.1 Lufeng Industrial Park, Wuxiang Town, Yinzhou District, Ningbo City, Zhejiang, China
Contact Person
Amylin