S-91455A310 2.2 mm ID x 5 mm OD DIN 125; ISO 7089 General Purpose Washers
General Purpose Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance through zinc plating, extending service life in demanding environments
- Precise dimensional accuracy with 2.2mm ID and 5mm OD ensuring perfect fit for M2 screws
- Superior load distribution with Rockwell B91 hardness providing excellent surface pressure resistance
- International compliance assurance meeting both DIN 125 and ISO 7089 standards for global project compatibility
- Environmental regulation adherence with full RoHS 3 and REACH compliance for sustainable operations
- Optimized thickness control (0.2-0.4mm) maintaining consistent performance while minimizing assembly height
- Reliable fastening performance through standardized flat washer design preventing loosening under vibration
Professional Applications & Engineering Value
These M2 metric flat washers deliver critical engineering solutions where precision spacing and corrosion resistance are paramount. The zinc plated steel construction provides essential protection against environmental degradation in industrial settings, while the Rockwell B91 hardness ensures maintained flatness under sustained clamping forces. Particularly valuable in electronics assembly, precision machinery, and automotive components, these washers solve common challenges of surface damage prevention and vibration-induced fastener loosening. The combination of DIN 125 and ISO 7089 compliance guarantees interchangeability and reliability across international engineering projects, making them ideal for OEMs and maintenance operations requiring standardized metric fastener systems.
Specification Summary & Compliance
This flat washer features precise metric dimensions with 2.2mm inner diameter, 5mm outer diameter, and 0.2-0.4mm thickness range. Manufactured to DIN 125 and ISO 7089 standards, these washers ensure dimensional accuracy and performance consistency. The zinc plated steel material provides both corrosion protection and the specified Rockwell B91 hardness. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and chemical safety for industrial applications worldwide.
