S-91116A250 7.4 mm ID x 22 mm OD DIN 9021 Oversized Washers
Oversized 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
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional load distribution thanks to DIN 9021 compliant flat design with 22mm outer diameter, preventing surface damage
- Precise M7 screw compatibility with 7.4mm inner diameter ensuring secure, vibration-resistant fastening
- Enhanced durability with Rockwell B75 hardness rating, maintaining structural integrity under repeated stress
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe, environmentally responsible usage
- Consistent dimensional accuracy with 1.8-2.2mm thickness range, providing reliable performance in metric applications
- Long-term cost efficiency through stainless steel's resistance to rust and degradation, reducing replacement frequency
Professional Applications & Engineering Value
These M7 flat washers deliver critical engineering value in demanding applications where corrosion resistance and dimensional precision are paramount. The passivated 18-8 stainless steel construction effectively counters chemical exposure and moisture, making them ideal for industrial machinery, marine equipment, and food processing facilities. Their DIN 9021 compliance ensures uniform load distribution across M7 screw assemblies, preventing joint loosening and surface indentation. The controlled 1.8-2.2mm thickness provides consistent spacing while the Rockwell B75 hardness maintains shape under high clamping forces. These metric washers solve common fastener failures in corrosive environments, extending equipment lifespan and reducing maintenance downtime.
Specification Summary & Compliance
Manufactured to DIN 9021 standards with precise metric dimensions: 7.4mm inner diameter, 22mm outer diameter, and 1.8-2.2mm thickness range. Constructed from passivated 18-8 stainless steel with Rockwell B75 hardness rating. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence for industrial applications.
