S-95211A187 8.4 mm ID x 21 mm OD DIN 7349 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 from 316 stainless steel construction, ideal for harsh chemical and marine environments
- Precise dimensional accuracy with 8.4mm ID and 21mm OD ensuring perfect fit for M8 fasteners
- Optimized load distribution with 1.3-2.0mm thickness range to prevent surface damage and joint loosening
- Guaranteed mechanical reliability through strict DIN 7349 standard compliance
- Environmental regulation compliance with RoHS 3 and REACH certifications for global supply chain integration
- Long-term durability maintaining performance in high-moisture and temperature-variable conditions
- Interchangeable metric system compatibility for seamless integration with international engineering projects
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these M8 metric flat washers deliver critical corrosion protection where standard fasteners fail. The 316 stainless steel composition provides exceptional resistance to chlorides, acids, and industrial chemicals, making them ideal for chemical processing equipment, marine hardware, and food-grade machinery. Their DIN 7349 compliance ensures consistent dimensional precision across production batches, eliminating assembly issues with M8 threaded components. The controlled thickness variation (1.3-2.0mm) allows engineers to select optimal washers for specific load-bearing requirements while maintaining uniform surface pressure distribution. These flat washers solve common challenges of galvanic corrosion, surface marring, and premature fastener failure in critical assemblies.
Specification Summary & Compliance
Manufactured to DIN 7349 standards with metric dimensions: 8.4mm ID (±0.2mm), 21mm OD (±0.3mm), and 1.3-2.0mm thickness range. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates. The 316 stainless steel construction meets international material specifications for corrosion-resistant applications without additional hardness ratings required for standard flat washer functionality.
