What is a Spring Washer?
A Spring Washer, or disc spring, is a mechanical device used to prevent loosening in bolted connections caused by vibration, thermal expansion, or load fluctuations. These washers compress under load and exert a continuous force that helps maintain tension in the joint. Our washers conform to top industry certifications including:
- Product Standards: TUV NORD – BS EN 14399 & 15048, ISO 9001, ISO/TS 16349
- Safety Certifications: TUV NORD – AD 2000 Merkblatt, NABL – ISO/IEC 17025
Such certification assures performance and compliance, especially critical in regulated industries like automotive and heavy engineering.
Specification of the Spring Washer
| Parameter |
Details |
| Product Type |
Spring Washer / Belleville Washer |
| Material |
Carbon Steel, stainless steel, Alloy Steel |
| Sizes Available |
M6, M8, M10, M12, M16, M20 |
| Finishing Options |
Zinc Plated, Hot Dip Galvanized, PTFE Coated |
| Manufacturing Tolerance |
±0.01 mm |
| Standard Compliance |
BS EN 14399, DIN 2093, IS 3063 |
| Hardness Range |
38-45 HRC (as per application) |
| Packaging |
Bulk, Custom-branded, Export-ready Boxes |
| Country of Origin |
India |
Types of the Spring Washer
- Helical Spring Washer (Split Washer): Helical spring washers, commonly referred to as split lock washers, are widely used in general-purpose fastening applications due to their simple yet effective design. With a single split and a slight helical shape, they exert axial pressure that resists loosening under vibration or dynamic loads.
- Belleville Washer (Conical Spring Washer): Belleville washers are cone-shaped spring washers engineered to handle high loads with minimal deflection. Their geometry allows for even distribution of force across the joint, which helps reduce stress concentration in bolted assemblies
- Wave Spring Washer: Wave spring washers feature a wavy or sinusoidal profile that provides a cushioning effect and moderate load capacity in compact spaces. These are especially beneficial in assemblies requiring a constant, low-to-medium force while allowing for thermal or mechanical expansion.
- Toothed Lock Washer: Toothed lock washers come with either internal or external teeth that grip into the mating surface to prevent fastener rotation under dynamic or vibrating conditions. Their aggressive locking action makes them ideal for electrical grounding applications and rotating machinery where secure fastening is critical.
- Curved Spring Washer (Crescent Washer): Curved spring washers, also known as crescent washers, offer continuous tension in low-load applications. Their shallow arc design allows them to accommodate minor thermal expansion or assembly misalignment while maintaining consistent preload.
- Single Coil and Multi Coil Spring Washers: Single and multi coil spring washers are formed by coiling flat wire into a helical shape, offering exceptional durability and consistent load retention. Single coil variants provide reliable tension under repeated tightening, while multi-coil versions improve fatigue strength and load distribution across the fastener.
Applications of the Spring Washer
- Automotive Industry: Common in braking and suspension systems where consistent clamping force is crucial for safety and longevity.
- Aerospace Engineering: Used in high-vibration environments such as jet engines and airframes to prevent bolt loosening.
- Industrial Machinery: Installed in heavy-duty presses, CNC machines, and gearboxes to maintain tight connections under load.
- Electronics and Power Devices: Ensures reliable electrical contact and mechanical stability in PCBs and sensitive circuit assemblies.
- Construction Equipment: Provides shock absorption and stability in structural joints, cranes, and mechanical fasteners.
Spring Washer Ordering, Compliance, and Safety Information
Ordering from Nilkamal Fasteners is straightforward and efficient. We maintain in-house inventory for standard sizes and offer custom manufacturing based on client specifications. All spring washers are:
- Manufactured in ISO-certified environments
- Packed and shipped with batch-wise traceability and compliance documentation
- Lab-tested for tensile, fatigue, and hardness properties
Contact Information
- 📍 Address: S.no.36/1/1, near Green Field Hotel, Wadgaon Khurd, Sinhgad Road, Pune – 411041
- 📞 Phone: +91 91129 57719
- ✉️ Email: nilkamalfasteners@gmail.com
Why Choose Us?
- Higher Tensile Strength: Our spring washers exceed standard tensile ratings by over 10,000 psi, ensuring unmatched reliability under extreme stress.
- Advanced Coating Options: We offer corrosion-resistant coatings like Geomet, PTFE, and Zinc-Nickel for demanding environments.
- In-House NABL Certified Testing Lab: Every washer is tested under strict quality parameters to ensure dimensional and mechanical integrity.
- Precision Engineering: From radiused root runouts to wide root thread forms, our washers are optimized for fatigue life and stress distribution.
- Customer Satisfaction and Industry Trust: With a reorder rate of 90%, our products are the top choice among OEMs, plant engineers, and MRO teams.
Because of these consistent innovations and advantages, we are the top Spring Washer Manufacturers in Pune, as well as the most preferred Spring Washer Suppliers in Pune, Spring Washer Traders in Pune, and Spring Washer Wholesalers in Pune.
Get Spring Washer in India | Nilkamal Fasteners
Nilkamal Fasteners is your trusted partner for all kinds of industrial fastening solutions. As experienced manufacturers in Pune, reliable suppliers in Pune, and seasoned exporters from Pune, we cater to industries that demand nothing but the best.
Whether you need bulk spring washers for automotive assembly or small-batch, custom-coated washers for electronic components - we’re equipped to meet your needs.
Ready to place an order or Contact Us? 📩 Reach out today at nilkamalfasteners@gmail.com or call us at +91 91129 57719. Let’s engineer strength together.
