Overview
An External Tooth Washer is a specialized type of lock washer designed to prevent loosening and maintain secure fastening in various industrial applications. Featuring multiple outward-facing teeth around its circumference, the External Tooth Washer bites into the surface of the fastened material and the underside of the bolt or nut, creating a firm grip that resists rotation caused by vibration or dynamic loads. Manufactured from high-quality materials such as stainless steel, carbon steel, or alloy steel, these washers are engineered to provide excellent corrosion resistance, durability, and mechanical strength. The design of the External Tooth Washer ensures even load distribution and enhanced locking capability, making it suitable for use in automotive, electrical, machinery, and construction industries where reliable fastening is critical.
The manufacturing process of the External Tooth Washer typically involves precision stamping and heat treatment to achieve consistent tooth geometry and optimal hardness. This ensures that the washer maintains its locking function under demanding conditions, including exposure to harsh environments and fluctuating temperatures. The External Tooth Washer is valued for its ability to reduce maintenance requirements by minimizing fastener loosening, thereby improving overall assembly integrity and safety. Its compatibility with a wide range of bolt sizes and materials further enhances its versatility. By incorporating an External Tooth Washer in fastening assemblies, engineers can achieve improved joint stability and extended service life, making it an essential component in high-performance fastening solutions.
| Product Type | External Tooth Washer |
| Head Style | Flat Circular Washer with External Teeth |
| Manufacturing Process | Stamping and Forming |
| Thread Type | Not Applicable (Washer) |
| Common Materials | Carbon Steel, Stainless Steel, Brass |
| Available Sizes | M2 to M24 (Metric), 1/8″ to 1″ (Imperial) |
| Strength Features | Provides Locking Action by Biting into Surface to Prevent Loosening |
| Typical Applications | Used in Assemblies to Prevent Fastener Loosening Due to Vibration |
| Surface Finishes | Zinc Plating, Black Oxide, Passivation, Plain |
| Standards | DIN 6798 Type A, ISO 7090 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Designed to maintain fastener tightness under dynamic loads and vibrations, reducing the risk of loosening in critical applications.
Available in stainless steel and coated finishes to withstand harsh environments and extend service life.
External teeth provide superior grip on mating surfaces, enhancing joint security.
Metallic construction allows for effective grounding and electrical continuity in assemblies.
Available in multiple diameters and thicknesses to suit various bolt sizes and applications.
Simple to install with standard bolts and nuts without requiring special tools or procedures.
| Product Type | Locking Washer with External Teeth |
| Material | Stainless Steel, Carbon Steel, Spring Steel |
| Diameter Range | M3 to M24 |
| Thickness Range | 1 to 6 mm |
| Standards | DIN 6798-1, ISO 10673 |
| Surface Finish | Plain, Zinc Plated, Passivated |
| Diameter (mm) | Outer Diameter (mm) | Thickness (mm) | Tooth Count |
|---|---|---|---|
| M3 | 7 | 1 | 12 |
| M6 | 12 | 1.5 | 16 |
| M12 | 22 | 2.5 | 20 |
| M24 | 40 | 4 | 28 |
