S-91100A150 6.4 mm ID x 18 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 protection with zinc-plated steel construction, extending service life in demanding industrial environments
- Precise load distribution across M6 fastener assemblies, preventing surface damage and maintaining joint integrity
- Consistent dimensional accuracy with 6.4mm ID and 18mm OD, ensuring perfect fit with standard M6 screws
- Enhanced mechanical strength from Rockwell B56 hardness, providing reliable performance under vibration and stress
- Guaranteed standardization through DIN 9021 certification, ensuring interchangeability across European equipment
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global supply chain integration
- Optimized thickness range (1.4-1.8mm) offering flexibility for various compression and spacing requirements
Professional Applications & Engineering Value
This zinc-plated steel flat washer delivers critical engineering solutions where corrosion resistance and load distribution are paramount. The M6 metric sizing combined with DIN 9021 standardization makes it ideal for European machinery, automotive assemblies, and electrical enclosures requiring precise fastener spacing. The zinc plating creates a sacrificial barrier against moisture and chemicals, while the Rockwell B56 hardness maintains washer integrity under repeated torque applications. Engineers specify these flat washers to prevent bolt loosening, distribute clamping forces evenly, and protect sensitive surfaces from galvanic corrosion in industrial applications.
Specification Summary & Compliance
Manufactured to DIN 9021 standards with precise dimensions: 6.4mm inner diameter, 18mm outer diameter, and 1.4-1.8mm thickness range. Features Rockwell B56 hardness for consistent mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Designed specifically for M6 screw sizes in metric fastener systems.
