Overview
The DIN 25201 Double Tab Lock Washer is a precision-engineered retaining component designed to deliver superior vibration resistance in critical bolted connections. This washer provides a reliable, mechanical locking action to prevent fastener loosening under dynamic loads, shock, and vibration, ensuring the long-term integrity of assemblies. Manufactured from robust carbon steel and protected with a high-performance Dacromet finish, it offers excellent durability and corrosion resistance for use in challenging industrial environments. Supplied in a bulk quantity of 1000 pieces, it is ideal for high-volume production lines and maintenance inventories.
Key Features
Engineered to DIN 25201 standard for assured dimensional consistency and performance. Double-tab design creates a powerful spring and locking action against both the bolt head/nut and the workpiece. Dacromet finish provides exceptional corrosion resistance without hydrogen embrittlement risks. Positive mechanical lock eliminates reliance on friction alone, preventing rotational loosening. Bulk packaging of 1000 units supports efficient, high-volume assembly operations. Reusable design allows for disassembly and reassembly without significant loss of locking performance.
Specifications
Standard: DIN 25201 System of Measurement: Metric
Material
Carbon Steel Material Grade/Class: Carbon Steel Finish: Dacromet Thread Size: M12 Shaft/Bore Diameter: 0.472 inches Thickness: 0.063 inches Package Quantity: 1000
Applications
Heavy machinery and equipment manufacturing Automotive and transportation assembly Structural steel fabrication and construction Industrial plant maintenance and repair Agricultural and off-highway vehicle production Any application requiring secure M12 fastening under vibrational stress








