Overview
Star washers are specialized fastener components designed to enhance the locking capability of bolted joints by providing increased friction and resistance to loosening under vibration or dynamic loads. Typically manufactured from high-grade steel or stainless steel, star washers feature a unique serrated or toothed design that resembles a star, allowing them to bite into the mating surfaces and distribute load evenly. This design improves the stability and reliability of assemblies in various industrial applications. The manufacturing process involves precision stamping or machining to ensure consistent tooth geometry and hardness, which are critical for optimal performance. Star washers are commonly used in automotive, aerospace, electrical, and heavy machinery sectors where secure fastening is essential for safety and operational integrity.
The performance of star washers is characterized by their ability to maintain tension and prevent fastener loosening even in environments subject to vibration, thermal expansion, or mechanical stress. Their materials are selected to provide corrosion resistance and durability, ensuring long service life in harsh conditions. The star washer’s design also facilitates easy installation without requiring additional components, making it a cost-effective solution for enhancing joint security. Applications range from securing electrical connections to reinforcing structural assemblies, where the star washer’s locking action reduces maintenance needs and improves overall system reliability. By integrating star washers into fastening solutions, engineers can achieve improved joint integrity and operational safety across diverse industrial settings.
| Product Type | Star Washer |
| Head Style | External or Internal Tooth |
| Manufacturing Process | Stamping and Forming |
| Thread Type | Non-threaded |
| Common Materials | Spring Steel, Stainless Steel, Carbon Steel |
| Available Sizes | #4 to 1 inch (varies by manufacturer) |
| Strength Features | High spring tension for locking and vibration resistance |
| Typical Applications | Locking fasteners, preventing loosening in assemblies subject to vibration |
| Surface Finishes | Zinc Plated, Black Oxide, Plain, Passivated |
| Standards | DIN 6797, ANSI B18.21.1 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Effectively prevents loosening caused by vibrations in dynamic applications, ensuring joint stability and safety over time.
Available in stainless and coated steels, providing excellent resistance to rust and environmental degradation.
Designed for quick and secure placement without special tools, reducing assembly time and labor costs.
Capable of maintaining preload under high stress, suitable for heavy-duty fastening applications.
Available with internal or external teeth to suit different surface and fastening requirements.
Provides a reliable locking mechanism at a competitive price, minimizing downtime and maintenance expenses.
| Product Type | Locking Washer |
| Tooth Type | External, Internal, Combination |
| Diameter Range | M3–M24 |
| Length Range | 5–50 mm |
| Available Materials | Stainless Steel, Carbon Steel, Spring Steel |
| Manufacturing Standards | DIN 6797, ISO 7089 |
| Surface Finish | Plain, Zinc Plated, Passivated |
| Size | Outer Diameter (mm) | Thickness (mm) |
|---|---|---|
| M3 | 7.0 | 0.5 |
| M6 | 12.0 | 0.8 |
| M12 | 20.0 | 1.2 |
| M24 | 38.0 | 2.0 |
