S-98035A105 8.4 mm ID x 16 mm OD 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 black-oxide steel surface treatment, ideal for harsh industrial environments
- Enhanced load distribution with precise 8.4mm ID and 16mm OD dimensions, preventing surface damage and loosening
- Exceptional hardness rating of Rockwell 15N80 ensures long-term durability under high-stress conditions
- Perfect compatibility with M8 metric screws, providing reliable fastening in mechanical assemblies
- Consistent thickness control (2.5-3.4 mm) for uniform pressure application and vibration resistance
- Full regulatory compliance with RoHS 3 and REACH standards, meeting global environmental and safety requirements
- Optimized for industrial use with metric system specifications, ensuring seamless integration into international projects
Professional Applications & Engineering Value
These M8 metric flat washers deliver critical engineering value by solving common industrial fastening challenges. The black-oxide steel construction provides excellent corrosion resistance, significantly extending service life in humid or chemically aggressive environments. With Rockwell 15N80 hardness, they maintain structural integrity under repetitive loading, preventing deformation in heavy machinery, automotive assemblies, and construction equipment. The precise 8.4mm ID ensures secure fitment on M8 fasteners while the 16mm OD optimally distributes clamping force, reducing stress concentration on joined surfaces. These precision washers are engineered for applications requiring reliable vibration resistance and long-term fastener stability.
Specification Summary & Compliance
Manufactured to metric system standards with dimensional accuracy: 8.4mm inner diameter, 16mm outer diameter, and 2.5-3.4mm thickness range. Compatible with M8 screw sizes and featuring Rockwell 15N80 hardness specification. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations as of January 17, 2023 (233 SVHC). Meets industrial fastener requirements for quality and environmental safety.
