S-SEN factory's spring washer is standardized anti-loosening fasteners for the global sourcing market. They are characterized by stable elasticity, reliable anti-loosening, and a full range of specifications, suitable for fastening needs in various scenarios such as mechanical equipment, automotive parts, motors, and valves. We insist on providing users with spring washers that can be used for a long time through mature processes and stable quality control.
S-SEN supplies Spring Washer, which are open-type elastic fasteners installed between nuts and connectors. When tightened, they generate elastic reaction force under pressure, automatically compensating for preload loss when loosening occurs. The open cutting edge can embed into the contact surface to increase frictional resistance, forming a dual anti-loosening effect of "elastic compensation + friction locking".
Our spring washers cover common standards such as national and German standards, with sizes ranging from M2 to M48. Materials include carbon steel, stainless steel, and copper alloy, meeting various working conditions such as indoor general use, outdoor corrosion, and conductive contact.
Structural Features: One-piece spiral open design for uniform force distribution. Processed cutting edges ensure stable engagement. Strict thickness and width tolerances ensure compatibility with standard bolts.
Working Principle: Tightening the nut → Washer deforms under pressure → Stores elastic force. Vibration/alternating load → Connection gap appears → Elastic force releases to compensate for the gap. Cutting edge engages the contact surface → Prevents nut rotation → Reduces the risk of loosening.
| Product Type | Structural Features |
|---|---|
| Standard Spring Washer | Open spiral structure, universal dimensions |
| Internal Tooth Elastic Washer | Multi-tooth on inner side, concentrated force bearing |
| External Tooth Elastic Washer | Multi-tooth on outer side, easy installation |
| Wave Spring Washer (WG/WL/WN Type) | Wave-shaped elastic structure, low height |
| Disc Spring Washer | Conical cross-section, excellent elastic recovery |
Our spring washers are available in three main materials, all of which have undergone hardness, elasticity, and salt spray testing to ensure stable performance.
Carbon Steel: High cost-effectiveness, stable strength, suitable for normal indoor environments.
Stainless Steel (304/316): Corrosion-resistant and rust-proof, suitable for outdoor, humid, and chemical environments.
Copper Alloy: Conductive and oxidation-resistant, suitable for electrical connections and instrument contacts.
| Item | Parameter |
|---|---|
| Product Name | Spring Washer |
| Brand | S-SEN |
| Standard | GB/T 93, GB/T 859, DIN127 |
| Material | Carbon Steel, Stainless Steel, Copper Alloy |
| Size Range | M2 – M48 |
| Surface Treatment | Plain, Zinc Plated, Passivation |
| Application | Anti-loosening for bolts & nuts under vibration |
| Hardness | HRC 40-48 (Carbon Steel) |
Packaging: Standard cartons/pallets, moisture-proof and dust-proof, suitable for long-distance transportation.
Logistics: Supports sea freight, air freight, and express delivery; full tracking available.
Shipping: Regular specifications in stock are shipped within 48 hours; customized products are delivered according to the agreed delivery date.
1. What is the difference between spring washers and anti-loosening washers?
Spring washers rely on elasticity and the engagement of the cutting edge to prevent loosening; anti-loosening washers often have a double-sided tooth structure, providing stronger anti-loosening effect and suitable for higher-requirement scenarios.
2. Can spring washers be used on high-strength bolts?
Not recommended. S-SEN spring washers are more suitable for bolts of grade 8.8 and below. For high-strength bolts, it is recommended to use dedicated locking devices.
3. Can you provide samples?
Yes, we support providing regular samples free of charge; shipping costs are borne by the customer.
4. What surface treatment options are available?
Regular options include natural finish, galvanized, passivated, and stainless steel pickled. Customization is also available upon request.
5. What is the minimum order quantity?
Standard sizes have a lower MOQ; larger quantities receive better pricing. Please contact us for details.
6. How long is the delivery time?
In-stock products: 2-3 days; Customized products: 7-15 days, subject to order confirmation.
7. Do you support OEM/ODM?
Yes, we can customize production according to customer drawings, standards, and trademarks.
Warranty: Products that have passed factory inspection are guaranteed for 1 year under correct storage and use.
Returns and exchanges: Returns and exchanges are accepted for non-human-caused quality issues; we will bear the related costs.
Technical support: We provide online guidance on product selection, installation, and working condition adaptation.
