S-91100A331 22.2 mm ID x 58.5 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 zinc-plated steel construction, extending service life in harsh industrial environments.
- Precise dimensional accuracy with 22.2mm ID and 58.5mm OD, ensuring reliable fit and load distribution for M20 fasteners.
- Enhanced durability with a thickness range of 3.4-4.6mm, providing consistent performance under high-stress conditions.
- Compliance with DIN 9021 standards guarantees interchangeability and quality assurance in metric assemblies.
- Optimized for Class 10.9 high-strength fasteners, reducing the risk of loosening and improving joint integrity.
- RoHS 3 and REACH compliance ensures environmental safety and meets stringent regulatory requirements for industrial use.
- Versatile application in heavy-duty machinery, automotive, and construction sectors, offering reliable sealing and spacing.
Professional Applications & Engineering Value
This M20 flat washer is engineered from zinc-plated steel to address common industrial challenges like corrosion and fastener fatigue. Its adherence to DIN 9021 standards ensures precise dimensions (22.2mm ID, 58.5mm OD) and uniform thickness (3.4-4.6mm), which prevent galvanic corrosion and distribute loads evenly in Class 10.9 fastener systems. Ideal for heavy-duty applications in automotive, machinery, and structural assemblies, it minimizes wear and extends equipment lifespan by maintaining bolt tension and resisting environmental degradation. The robust design supports high-stress environments, reducing maintenance needs and enhancing overall industrial reliability.
Specification Summary & Compliance
This flat washer features metric dimensions with an inner diameter of 22.2mm, outer diameter of 58.5mm, and thickness of 3.4-4.6mm, conforming to DIN 9021 standards for dimensional precision and compatibility with M20 screws. It is manufactured from zinc-plated steel and is rated for use with Class 10.9 high-strength fasteners. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial applications.
