S-98688A156 13 mm ID x 20 mm OD DIN 433 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
- Superior corrosion protection with zinc plating that extends service life in demanding industrial environments
- Exceptional load distribution thanks to precise 20mm OD dimensions that prevent surface damage and joint loosening
- Perfect M12 screw compatibility with 13mm ID ensuring secure fit and consistent performance
- Enhanced mechanical strength from Rockwell C38 hardness rating that withstands heavy-duty applications
- Guaranteed dimensional accuracy through strict adherence to DIN 433 manufacturing standards
- Reliable environmental compliance meeting both RoHS 3 and REACH regulations for safe industrial use
- Optimized thickness range (1.8-2.2mm) providing ideal balance between structural support and installation flexibility
Professional Applications & Engineering Value
This M12 zinc plated steel flat washer delivers critical engineering solutions for industrial fastening systems where vibration resistance and corrosion protection are paramount. The zinc plated steel construction creates a sacrificial barrier against environmental degradation, significantly extending maintenance intervals in machinery, structural assemblies, and outdoor equipment. Engineered to DIN 433 specifications, these metric washers maintain precise dimensional stability under load, preventing bolt loosening and surface indentation in high-stress applications. The combination of Rockwell C38 hardness and controlled thickness tolerance ensures consistent performance in automotive, construction, and manufacturing environments where fastener reliability directly impacts operational safety and equipment longevity.
Specification Summary & Compliance
Manufactured to exact DIN 433 standards with precise dimensional parameters: 13mm internal diameter, 20mm outer diameter, and 1.8-2.2mm thickness range. The zinc plated steel construction meets Rockwell C38 hardness requirements for mechanical durability. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and unrestricted use across industrial sectors.
