Overview
The Tab-Lock Washer is a specialized fastener component designed to enhance the security and stability of bolted assemblies by preventing loosening due to vibration or dynamic loads. Engineered with a unique tab feature that bends against the bolt head or nut, the Tab-Lock Washer effectively locks the fastener in place, ensuring consistent clamping force over time. Manufactured from high-grade materials such as carbon steel, stainless steel, or alloy steel, the Tab-Lock Washer undergoes precise stamping and heat treatment processes to achieve optimal hardness and durability. Its robust design incorporates a serrated or toothed surface that increases friction between the washer and the mating surface, further reducing the risk of fastener rotation. The Tab-Lock Washer is widely utilized in automotive, aerospace, heavy machinery, and construction applications where reliable joint integrity is critical under harsh operating conditions.
Performance-wise, the Tab-Lock Washer offers superior resistance to loosening compared to standard washers, making it an essential component in assemblies subjected to continuous vibration or thermal cycling. The washer’s ability to maintain preload and prevent fastener back-off contributes to enhanced safety and reduced maintenance requirements. Its compatibility with various bolt sizes and thread types allows for versatile application across multiple industries. Additionally, the Tab-Lock Washer’s corrosion-resistant coatings, such as zinc plating or passivation, extend its service life in demanding environments. By integrating the Tab-Lock Washer into fastening solutions, engineers can achieve improved joint reliability, minimize downtime, and ensure structural integrity in critical assemblies where failure is not an option.
| Product Type | Tab-Lock Washer |
| Head Style | Flat Washer with Locking Tab |
| Manufacturing Process | Stamping and Forming |
| Thread Type | Compatible with Standard Machine Screw Threads |
| Common Materials | Carbon Steel, Stainless Steel |
| Available Sizes | #4 to 1/2 inch (M3 to M12) |
| Strength Features | Prevents Loosening from Vibration, Provides Positive Locking |
| Typical Applications | Electrical Panels, Machinery Assemblies, Automotive Fastening |
| Surface Finishes | Zinc Plated, Phosphate Coated, Plain |
| Standards | ANSI B18.21.1, DIN 6797 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Effectively prevents fastener loosening caused by vibration and dynamic loads in demanding environments.
Tabs can be bent quickly to lock fasteners without special tools, reducing assembly time and labor costs.
Manufactured from high-quality steel with heat treatment for enhanced strength and wear resistance.
Available in stainless steel and coated finishes to withstand corrosive environments and extend service life.
Offered in a wide range of diameters and thicknesses to fit various bolt sizes and applications.
Tabs provide positive mechanical locking, ensuring fasteners remain tight under stress and thermal cycling.
| Product Type | Tab-Lock Washer |
| Thread Type | Compatible with Metric and Imperial bolts |
| Diameter Range | M5 to M24 |
| Length Range | 5 to 30 mm |
| Available Materials | Stainless Steel, Carbon Steel, Alloy Steel |
| Manufacturing Standards | DIN 6797, ISO 7089 |
| Surface Finish | Plain, Zinc Plated, Passivated |
| Diameter (mm) | Outer Diameter (mm) | Thickness (mm) | Tab Length (mm) |
|---|---|---|---|
| M5 | 10 | 1.0 | 3 |
| M8 | 16 | 1.6 | 4 |
| M12 | 20 | 2.0 | 5 |
| M16 | 24 | 2.5 | 6 |
| M24 | 36 | 3.0 | 8 |
