S-91100A170 10.5 mm ID x 30 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
- Enhanced corrosion resistance with zinc plating for prolonged service life in demanding industrial environments.
- Optimal load distribution from the 30mm outer diameter, minimizing surface pressure and preventing material damage.
- Precise M10 screw compatibility with a 10.5mm inner diameter for secure, vibration-resistant fastening.
- Durable structural integrity provided by Rockwell B56 hardness steel, resisting deformation under high stress.
- Reliable standardization through DIN 9021 certification, ensuring consistent quality and interchangeability.
- Stable performance from the controlled 2.3-2.7mm thickness, maintaining uniform clamping force.
- Safe and sustainable use with full compliance to RoHS 3 and REACH environmental regulations.
Professional Applications & Engineering Value
This M10 zinc-plated steel flat washer is engineered to address critical challenges in industrial assembly and machinery. The zinc-plated steel construction combats rust and corrosion, extending component lifespan in humid or outdoor settings. Its DIN 9021 design ensures precise dimensions, such as the 30mm OD, which effectively distributes load to prevent bolt head embedding and surface cracking. The Rockwell B56 hardness provides excellent resistance to wear and deformation, maintaining fastener integrity under repetitive stress. Ideal for automotive, construction, and heavy equipment, this metric flat washer delivers reliable performance, reduces maintenance needs, and supports long-term operational safety in high-vibration applications.
Specification Summary & Compliance
This washer conforms to DIN 9021 dimensional standards with an inner diameter of 10.5mm, outer diameter of 30mm, and thickness of 2.3-2.7mm. Manufactured from zinc-plated steel with a hardness of Rockwell B56, it meets precise engineering tolerances. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for global industrial supply chains.
