Spring Washers
Spring Washers, also known as Lock Washers, are designed to prevent loosening, absorb shock, and maintain tension in bolted assemblies. Their split-ring, conical, or wave-shaped design allows for flexibility, compression resistance, and improved grip in vibration-prone applications such as automotive, aerospace, industrial machinery, and heavy equipment.
At Rajal Industries, we manufacture high-precision Spring Washers conforming to ISO, ASME, and DIN standards, ensuring reliable locking performance, corrosion resistance, and superior load distribution in industrial and structural applications.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Metric: M2 to M36 | ISO 7091 – Standard for spring lock washers in metric fasteners |
| Imperial: 1/4" to 1-1/2" | ASME B18.21.1 – U.S. standard for general-purpose spring washers |
| ISO 7089 – International standard for locking washers | |
| DIN 127 – German standard for split spring lock washers |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Carbon Steel & Hardened Steel | Class 5.8, 8.8, 10.9 | ISO 7089, DIN 125, ASME B18.22.1 |
| Stainless Steel (Corrosion Resistant) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506, ISO 7091 |
| Alloy Steel (High Load-Bearing Capacity) | Class 10.9, 12.9 | DIN 127, ISO 7091 |
| Phosphor Bronze & Brass (Non-Corrosive & Electrical Applications) | Custom Hardness Ratings | ISO 7091, ASME B18.21.1 |
- Heat-Treated for Maximum Hardness & Fatigue Resistance –Spring washers undergo hardening and tempering to enhance mechanical durability and performance.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8.8 Spring Washer: 800-900 MPa tensile strength
- Stainless Steel A4-80 Spring Washer: 700-800 MPa corrosion-resistant strength
Spring Washer Design & Engineering Features
Spring-Loaded Tension for Secure Fastening
- Maintains bolt preload and prevents self-loosening under dynamic loads and vibrations.
Enhances clamping force to ensure long-term stability.
Split & Wave Locking Designs for Enhanced Grip
- Split Lock Washers (DIN 127) – Designed with a helical shape to resist loosening.
Wave Washers (ISO 7091) – Provide consistent tension and load distribution.
Conical Spring Washers – Absorb high-impact loads and prevent bolt loosening.
High-Shear Strength for Load-Bearing Applications
- Distributes clamping force evenly, reducing surface damage and stress concentration.
Used in high-pressure, load-sensitive applications such as aerospace, automotive, and industrial machines.
Corrosion-Resistant Variants for Harsh Environments
- Available in stainless steel, phosphor bronze, and zinc-plated finishes.
Ensures long-term durability in marine, aerospace, and high-humidity conditions.
Multiple Variants for Specific Industrial Uses
- Heavy-Duty Spring Washers – Designed for high-load structural applications.
Light-Duty Wave Washers – Used for delicate electronic and precision instruments.
Thread Specifications & Precision Engineering
| Feature | Description | Application |
|---|---|---|
| Split Spring Washers (DIN 127) | Provides spring tension for secure locking | Automotive, industrial machinery |
| Wave Spring Washers (ISO 7091) | Designed for shock absorption & dynamic loads | Aerospace, precision assemblies |
| Heavy-Duty Spring Washers | Ensures high-shear strength & stability | Structural fastening, railways |
| Phosphor Bronze Spring Washers | Offers non-corrosive and electrical insulation properties | Marine, electrical connections |
Thread Fitment & Compliance
- Metric spring washers conform to ISO 7091 & DIN 127 tolerances, ensuring secure fastening.
- Imperial spring washers meet ASME B18.21.1 standards for universal compatibility.
Common Applications of Spring Washers
- Construction & Infrastructure – Used in steel structures, bridges, and seismic-resistant fastening.
- Automotive & Heavy Vehicles – Ensures secure fastening in suspension systems, engines, and transmission assemblies.
- Industrial Machinery & Heavy Equipment – Provides joint reinforcement in dynamic, high-vibration applications.
- Marine & Offshore Engineering – Used in shipbuilding, docks, and offshore platforms.
- Electronics & Electrical Equipment – Protects delicate circuits and connections from loosening due to movement.
Why Choose Rajal Industries for Spring Washers?
Manufactured to International Standards
Ensuring precision engineering, strength, and compliance.
Spring-Loaded & Locking Design for Secure Fastening
Prevents loosening in high-load, high-vibration environments.
Customizable Variants Available
Offering split, wave, and conical spring washers.
Bulk & Custom Orders
Ideal for construction, automotive, and industrial applications.
Stringent Quality Control
Each batch undergoes fatigue testing, dimensional accuracy verification, and corrosion resistance assessment.
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Our Offices
C-204, Vaibhav Platina, Nr. Kaveri Trishra, S P Ring road, Shilaj, Ahmedabad, Gujarat-380054
Call us
+91-846 036 2030
Email Us
rajalfast@gmail.com sales@rajalindustries.com
