S-98040A107 13 mm ID x 26 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 coating for extended service life in harsh industrial environments
- Exceptional load distribution thanks to precise 13mm ID and 26mm OD dimensions, preventing surface damage and loosening
- Enhanced durability with Rockwell 15N80 hardness, maintaining structural integrity under high-stress conditions
- Reliable M12 screw compatibility ensuring secure fastening in heavy-duty metric assemblies
- Optimized thickness range (4.5-5.4mm) providing consistent performance and vibration resistance
- Full regulatory compliance with RoHS 3 and REACH standards for safe, sustainable industrial use
- Versatile metric sizing for seamless integration into global engineering projects and equipment
Professional Applications & Engineering Value
This M12 flat washer delivers critical engineering solutions where corrosion resistance and structural reliability are paramount. The black-oxide steel construction provides a protective barrier against moisture, chemicals, and environmental exposure, significantly reducing maintenance needs in industrial applications like machinery, automotive assemblies, and construction equipment. With its metric dimensions (13mm ID × 26mm OD) and controlled 4.5-5.4mm thickness, it ensures even pressure distribution across M12 screw connections, preventing joint failure and surface deformation. The Rockwell 15N80 hardness guarantees long-term performance under dynamic loads, making it ideal for heavy-duty fastening systems requiring precision and durability.
Specification Summary & Compliance
This metric flat washer features precise dimensional tolerances with 13mm inner diameter, 26mm outer diameter, and 4.5-5.4mm thickness range, engineered for M12 screw size compatibility. Manufactured from black-oxide steel with Rockwell 15N80 hardness for consistent performance. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) and REACH (EC 1907/2006) regulations (SVHC list as of 01/17/2023), ensuring environmental and safety standards are met for industrial applications.
