S-98690A108 2.2 mm ID x 4.5 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 resistance in harsh environments due to 316 stainless steel material, ideal for chemical, marine, and outdoor applications.
- Precise dimensional fit with 2.2mm ID and 4.5mm OD ensures secure seating and even load distribution for M2 screws.
- Consistent thickness control (0.3-0.4mm) provides reliable spacing and prevents loosening under vibration or thermal cycling.
- Enhanced mechanical durability from Rockwell B75 hardness, offering excellent resistance to deformation and wear.
- Guaranteed interchangeability and quality through compliance with DIN 433 standards for metric flat washers.
- Safe for sensitive applications with full RoHS 3 and REACH compliance, free from hazardous substances.
- Broad industrial compatibility for use in electronics, machinery, and assemblies requiring metric fasteners.
Professional Applications & Engineering Value
This M2 316 stainless steel flat washer is engineered to address common industrial challenges like galvanic corrosion, fastener fatigue, and assembly inconsistency. Its 316 stainless steel composition delivers exceptional resistance to chlorides, acids, and extreme temperatures, making it a reliable choice for marine equipment, chemical processing plants, and food-grade machinery. The precise DIN 433 dimensions and controlled thickness (0.3-0.4mm) ensure uniform clamping force, reduce stress concentrations, and extend the service life of connected components. By mitigating corrosion and maintaining tight tolerances, this washer minimizes maintenance downtime and enhances the reliability of metric fastener systems in demanding environments.
Specification Summary & Compliance
This flat washer conforms to DIN 433 standards for dimensional accuracy, including an inner diameter of 2.2mm, outer diameter of 4.5mm, and thickness range of 0.3-0.4mm. It is manufactured from 316 stainless steel with a hardness of Rockwell B75 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material consistency for global industrial use.
