Overview
This DIN 25201 double lock washer is engineered for high-performance, vibration-resistant fastening in demanding industrial and automotive applications. Manufactured from 65Mn carbon steel and finished with a protective Dacromet coating, it provides a durable and reliable self-locking solution. The washer's unique double-lobed design creates a powerful spring force that maintains bolt tension and prevents loosening under dynamic loads. Supplied in a bulk quantity of 1000 pieces, it is ideal for high-volume assembly lines and maintenance operations where consistent quality and secure connections are critical.
Key Features
Constructed from high-strength 65Mn carbon steel for excellent tensile strength and spring properties. Dacromet finish provides exceptional corrosion resistance, outperforming standard zinc plating. Double-lobed (two-turn) design generates superior spring force and compensates for material relaxation. Prevents fastener loosening caused by vibration, shock, and thermal cycling. Precision-engineered bore and thickness ensure consistent fit and reliable performance. Bulk packaging of 1000 units supports efficient inventory management for high-volume usage.
Specifications
Standard: DIN 25201
Material
Carbon Steel Material Grade: 65Mn Finish: Dacromet Shaft/Bore Diameter: 0.394 inches Thickness: 0.039 inches Thread Size: Not Applicable System of Measurement: Metric (with Imperial equivalents provided) Package Quantity: 1000 pieces
Applications
General industrial machinery assembly and maintenance. Automotive manufacturing for engine components, chassis, and drivetrain systems. Heavy equipment and agricultural machinery. Electrical panel and enclosure construction. Rail and transportation industry fastening. Any application requiring a secure, vibration-proof lock washer in corrosive or high-stress environments.








