Spring Washer (SS) Supplier
High-quality Stainless Steel Spring Washer. Split spring lock washer for anti-loosening. Size range M2-M36. Factory direct pricing with ISO 9001 certification.
Quick Specifications
Material
Stainless Steel
Type
Split spring lock washer
Size Range
M2–M36
Surface Finish
Natural
Grade
A2 (SS304) / A4 (SS316)
Product Overview
Stainless steel spring washers combine the anti-loosening function of a split lock washer with the superior corrosion resistance of stainless steel. They are ideal for applications exposed to moisture, chemicals, or saltwater where vibration resistance is required.
Our stainless steel spring washers are manufactured in A2 (SS304) and A4 (SS316) grades to DIN 127A / ISO 7090 standards. The split design creates spring tension that maintains constant pressure on the fastened joint.
All products comply with international standards including DIN 127, ISO 7090, and GB/T 93, ensuring reliable anti-loosening performance in corrosive environments.
Dimensional Specifications
DIN 127 / ISO 7090 Standard – Stainless Steel Spring Washers
| Thread Size | Inner Dia. d (mm) | Outer Dia. D (mm) | Width b (mm) | Thickness s (mm) |
|---|---|---|---|---|
| M2 | 2.1 | 4.5 | 0.5 | 0.5 |
| M3 | 3.1 | 6.2 | 0.8 | 0.8 |
| M4 | 4.1 | 8.2 | 1.0 | 1.0 |
| M5 | 5.1 | 10.2 | 1.2 | 1.2 |
| M6 | 6.1 | 12.2 | 1.6 | 1.6 |
| M8 | 8.1 | 16.2 | 2.0 | 2.0 |
| M10 | 10.2 | 20.2 | 2.2 | 2.2 |
| M12 | 12.2 | 24.2 | 2.5 | 2.5 |
| M16 | 16.2 | 30.2 | 3.0 | 3.0 |
| M20 | 20.2 | 37.2 | 4.0 | 4.0 |
| M24 | 24.2 | 44.2 | 5.0 | 5.0 |
| M30 | 30.2 | 56.2 | 6.0 | 6.0 |
| M36 | 36.2 | 66.2 | 7.0 | 7.0 |
Material Grades & Mechanical Properties
Stainless Steel Spring Washers – Mechanical Properties
| Grade | Hardness (HRB) | Tensile Strength (MPa) | Corrosion Resistance | Applications |
|---|---|---|---|---|
| A2 (SS304) | 85-100 | 520-720 | Good – general atmosphere | Food, architecture, general |
| A4 (SS316) | 88-105 | 540-740 | Excellent – marine/chemical | Marine, chemical, medical |
| A4 (SS316) Cold Work | 95-115 | 700-1000 | Excellent – high strength | High-stress marine applications |
Surface Treatment Options
Choose the right finish for your application environment
Natural Finish
Standard mill finish stainless steel surface. Good corrosion resistance for general applications and environments.
- Standard corrosion resistance
- Cost-effective
- General purpose
Passivated
Chemical passivation treatment for enhanced corrosion resistance. Removes free iron and improves surface quality.
- Enhanced corrosion resistance
- Removes surface contaminants
- Extended service life
Electro-Polished
Electrochemical polishing for superior surface finish and maximum corrosion resistance in critical applications.
- Mirror-like surface
- Maximum corrosion resistance
- Hygienic applications
Applications
Food & Beverage Food & Beverage
Processing lines, dairy, brewing, packaging
Marine Marine
Boat hardware, deck fittings, rigging
Medical Medical
Medical devices, surgical equipment, clean rooms
Solar Energy Solar Energy
Solar panel mounting, outdoor renewable systems
Chemical Chemical
Chemical processing, storage, pipelines
Architecture Architecture
Curtain walls, facades, coastal buildings
Quality Assurance
ISO 9001 Certified
Strict quality management system
Material Certificates
EN 10204 3.1 certificates available
100% Inspection
Dimensional and visual inspection
Professional Packaging
Carton, bag, pallet options
Need Stainless Steel Spring Washers?
Factory direct pricing, MOQ from 1 piece, fast delivery worldwide.