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DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
Specifications
Sample :
Free Samples
Model Number :
washer
Connection :
Common Bolt
MOQ :
50000
Payment Terms :
T/T
Packaging Details :
Plastic Bag / Paper Box
Standard :
DIN, ANSI, GB, JIS, BSW, GOST
Place Of Origin :
ZHEJIANG CHINA
Supply Ability :
500 Tons/month
Quality :
100% Inspection
Price :
Negontiation
Usage :
For Fastening Metal To Metal
Certification :
ISO 9001
Measurement System :
INCH, Metric
Place of Origin :
China
Finish :
Zinc Plated
Brand Name :
YONGBIAO
Delivery Time :
7-25Days
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
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
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
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
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DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct

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Product Detail
Sample :
Free Samples
Model Number :
washer
Connection :
Common Bolt
MOQ :
50000
Payment Terms :
T/T
Packaging Details :
Plastic Bag / Paper Box
Contact Supplier
video
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct
DIN137A Curved Spring Washer Carbon Steel Black Oxide Finish M2-M36 High Quality Factory Direct

NINGBO YONGBIAO FASTENER CO.,LTD

Verified Supplier
2 Years
zhejiang, ningbo
Since 2012
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Pan Head Screw, Bugle Head Screw, Self Tapping Screw
Total Annual :
5000000-6000000
Employee Number :
45~53
Certification Level :
Verified Supplier
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