S-98363A113 9 mm ID x 28 mm OD DIN 440-R 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 load distribution with a 28mm outer diameter to prevent surface damage and loosening under high stress.
- Excellent vibration resistance thanks to precise DIN 440-R specifications, ensuring long-term joint integrity.
- Durable steel construction with Rockwell B50 hardness for reliable performance in harsh industrial environments.
- Accurate M8 screw compatibility with a 9mm inner diameter for easy installation and secure fit.
- Consistent thickness control (2.4-3.6mm) to maintain uniform pressure distribution across applications.
- Environmental compliance with RoHS 3 and REACH standards, supporting sustainable and safe manufacturing processes.
- Metric system alignment for seamless integration into global machinery and equipment designs.
Professional Applications & Engineering Value
This M8 DIN 440-R flat washer is engineered to address common industrial challenges such as joint failure from uneven load distribution and vibration-induced loosening. Made from high-quality steel with a Rockwell B50 hardness, it provides robust support in demanding settings like automotive assembly, machinery frames, and construction equipment. The precise metric dimensions (9mm ID, 28mm OD) and adherence to DIN 440-R standards ensure compatibility and reliability, reducing maintenance needs and enhancing operational safety. Its vibration-resistant design makes it ideal for dynamic applications, offering long-lasting performance while meeting strict RoHS and REACH environmental guidelines for responsible sourcing.
Specification Summary & Compliance
This flat washer conforms to DIN 440-R specifications, with precise metric dimensions including an inner diameter of 9mm, outer diameter of 28mm, and thickness ranging from 2.4 to 3.6mm. It is manufactured from steel with a hardness of Rockwell B50, ensuring dimensional accuracy and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental safety and industry standards for reliable use in various engineering applications.
