S-98688A175 4.3 mm ID x 8 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
- Enhanced corrosion protection through zinc plating extends service life in humid or industrial environments
- Precise dimensional accuracy with 4.3mm ID ensures perfect fit for M4 screws, preventing assembly misalignment
- DIN 433 compliance guarantees standardized quality and interchangeability across European industrial applications
- Optimal load distribution with 8mm OD design reduces surface pressure and prevents material damage
- Environmental regulation compliance with RoHS 3 and REACH standards ensures safe usage in regulated industries
- Versatile industrial applicability due to zinc plated steel construction balancing durability with cost-effectiveness
- Space-efficient profile with 0.5-0.6mm thickness ideal for compact assemblies without compromising performance
Professional Applications & Engineering Value
This M4 metric flat washer delivers critical engineering solutions where vibration resistance and surface protection are paramount. The zinc plated steel construction creates a sacrificial layer that actively prevents rust formation in mechanical assemblies exposed to moisture or chemical agents. Manufactured to DIN 433 specifications, these washers maintain consistent dimensional tolerances that eliminate fastener loosening in automotive subassemblies, electrical enclosures, and precision machinery. The 0.5-0.6mm thickness provides essential bearing surface while accommodating space-constrained designs, making them particularly valuable in industrial washers applications requiring repeated disassembly and maintenance cycles without galling or seizing.
Specification Summary & Compliance
Manufactured to DIN 433 standards with precise dimensional control (4.3mm ID × 8mm OD × 0.5-0.6mm thickness). Material specification confirms zinc plated steel construction for consistent performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives, verified against the latest SVHC list (updated 06/14/2023). Designed specifically for M4 screw size applications in metric fastener systems.
