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European Standard Washer

Application

The washer is suitable for construction machinery, automotive suspension systems, wind turbine bolted joints, railway fasteners, and CNC equipment alignment. Its high-strength design and corrosion resistance make it ideal for both industrial and offshore environments.

Standards

EN 14399-3: High-strength structural bolting assemblies
EN 1090-2: Structural steel components
ISO 9001:2015: Quality management systems
EN ISO 9227: Salt spray corrosion testing
DIN 51350: Friction coefficient testing
ISO 7412: Hexagon socket head cap screws
REACH SVHC: Chemical safety compliance
RoHS 2.0: Restriction of hazardous substances

Feature

(1) Multi-layer design with flange plate for stress distribution and spring washer for vibration resistance.
(2) High fatigue strength, capable of 5×10⁶ cycles (EN 13001-3).
(3) Wide temperature resistance from -40°C to +300°C.
(4) Optimized friction coefficient of 0.08–0.12 for secure fastening.
(5) Corrosion-resistant stainless steel (AISI 304/316) with passivated + PTFE coating.
(6) Compliant with EN 14399-3 and ISO 7412 for high-strength bolted connections.
(7) Compact and precise dimensions for consistent assembly performance.

Technical Specifications

ParameterSpecifications
Material Grade AISI 316L (ISO 3506)
Dimensions M12–M30 (EN 14399-1)
Outer Diameter 22–50 mm (±0.1 mm)
Thickness 2.5–4.0 mm
Load Class 10.9 / 12.9 (DIN 912)
Surface Treatment Passivated + PTFE coating
Load Capacity 120 kN (static), 45 kN (fatigue)
Corrosion Resistance Salt spray ≥ 1000 h (EN ISO 9227)

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