Overview
The DIN 25201 Double Tab Lock Washer is a precision-engineered, vibration-resistant fastener designed for critical bolted connections. It conforms to the established DIN 25201 standard, ensuring consistent quality and reliable performance in industrial and mechanical assemblies. This washer functions as a standalone locking element, securing nuts and bolts against rotational loosening caused by dynamic loads, vibration, and thermal cycling. Its carbon steel construction, enhanced with a Dacromet finish, provides durable strength and superior corrosion protection for use in challenging environments.
Key Features
Vibration-resistant double tab locking design maintains clamp load Eliminates the need for separate lock nuts, lock wires, or thread-locking compounds Dacromet finish offers excellent corrosion resistance, outperforming standard zinc plating Precision-formed for consistent performance and a secure fit on M5 fasteners Simplifies assembly and reduces total installed cost per joint Suitable for high-reliability applications where fastener integrity is paramount
Specifications
Standard: DIN 25201 System of Measurement: Metric
Material
Carbon Steel Material Grade/Class: Carbon Steel Thread/Bolt Size: M5 Finish: Dacromet Shaft/Bore Diameter: 0.197 inches Thickness: 0.039 inches Package Quantity: 1000
Applications
This washer is ideal for securing fasteners in machinery and equipment subject to constant motion or vibration. Common applications include automotive sub-assemblies, conveyor systems, electric motor mounts, pump and compressor assemblies, and heavy-duty agricultural equipment. It is also specified in structural frameworks and transportation infrastructure where joint security is critical for long-term safety and performance.
