Overview
The DIN25201 Double-Lock Washer is engineered for critical bolted connections where vibration loosening is a primary concern. This precision component utilizes a dual-lobed, self-locking design to maintain consistent clamp load and prevent fastener back-off in high-stress environments. Manufactured from high-grade 65Mn carbon steel and finished with a protective Dacromet coating, it delivers reliable performance and extended service life in demanding industrial applications.
Key Features
Dual-lobed self-locking design for superior vibration resistance Maintains clamp load without marring or damaging mating surfaces High tensile strength and spring performance from 65Mn carbon steel Dacromet finish provides excellent corrosion protection Precision-machined for consistent bore diameter and thickness Packaged for convenience and inventory control
Specifications
Standard: DIN 25201
Material
Carbon Steel Material Grade: 65Mn Finish: Dacromet Shaft/Bore Diameter: 2.20 in Thickness: 0.039 in Thread Size: Not Applicable System of Measurement: Metric Design Standard Package Quantity: 12
Applications
Heavy machinery and equipment assembly Structural steel connections Power generation and transmission infrastructure Rail and transportation manufacturing Agricultural and construction equipment Any application requiring a vibration-proof lock for fasteners up to 2.20 inches in diameter








