External Tooth Lock Washers
External tooth lock washers are small metal discs with teeth around their edge. These teeth grip the surface of the material they’re attached to, effectively preventing fasteners like nuts or bolts from loosening. They are commonly used in assemblies to provide extra security, especially in environments where vibrations or movement could cause parts to come apart. The long-lasting durability of external tooth lock washers ensures that things stay tight and secure, making them a crucial component in various applications.
Key Features
Designed to provide superior load distribution, durability, and an aesthetically refined finish across a wide range of applications.
Their flat and circular shape provides a stable base for the fastener, ensuring even pressure distribution and improved fastening performance.
The precisely sized central hole ensures a tight fit with the fastener, preventing slippage and providing reliable support.
Available in steel, stainless steel, aluminum, and other materials, making them suitable for diverse industrial and environmental applications.
Models, Sizes & Specifications
External Tooth Lock Washers are available in sizes from M3 to M100+. Thickness ranges from 0.5 mm to 5 mm as per requirement.
Available Materials
Pack Configuration
- Tab-type shims: 8 dimensions × 10 thicknesses
- SE single-slot: 5 dimensions × 10 thicknesses
- Pack size: 10 pieces per thickness
External Tooth Lock Washer Sizes and Dimensions
| Bolt Size | Top Outside Diameter (A) | Bottom Outside Diameter (B) | Thickness (T) | Weight (grams) |
|---|---|---|---|---|
| 1/2 | 1-1/4 | 2-1/4 | 1/8 | 35 |
| 5/8 | 1-1/2 | 2-1/2 | 5/32 | 45 |
| 3/4 | 1-3/4 | 2-3/4 | 3/16 | 55 |
| 7/8 | 2 | 3 | 7/32 | 70 |
| 1 | 2-1/4 | 3-1/4 | 1/4 | 95 |
| 1-1/8 | 2-1/2 | 3-1/2 | 5/16 | 130 |
| 1-1/4 | 2-3/4 | 4 | 3/8 | 160 |
| 1-1/2 | 3 | 4-1/2 | 7/16 | 220 |
External Tooth Lock Washer Specifications, Sizes And Schedules
| Specifications | Details |
|---|---|
| Sizes And Schedules | M3 to M100 |
| Minimum Order Quantity | 100 Unit |
| Packaging Type | ROLL |
| Bimetallic Material | Aluminium and Copper |
| Shape | Round |
| Surface Finish | Metal Coated |
| Standard | AISI, ASTM, DIN, GB |
| Material | Aluminium |
| Thickness | 2-8mm |





