S-91717A197 0.281" ID x 0.5" OD Clipped Washers
Clipped Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Geometric Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with black-oxide steel finish, extending service life in harsh environments
- Optimized load distribution from 0.5" outer diameter design, preventing surface damage and loosening
- Precise fit for 1/4" screws with 0.281" inner diameter, ensuring secure fastening and vibration resistance
- Enhanced durability with Rockwell B40 hardness, maintaining structural integrity under repeated stress
- Easy installation and alignment thanks to the clipped design with 0.45" width, saving assembly time
- Consistent performance with thickness range of 0.056-0.071", providing reliable spacing and tension control
- Compliance with global standards including RoHS 3 and REACH, ensuring safe and sustainable usage
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this black-oxide steel clipped washer addresses common fastening challenges like corrosion, vibration-induced loosening, and misalignment. The black-oxide coating offers a robust barrier against moisture and chemicals, making it ideal for outdoor equipment, automotive assemblies, and machinery exposed to corrosive elements. Its clipped design facilitates quick positioning on 1/4" screws, reducing installation errors in high-volume production lines. With a Rockwell B40 hardness, it withstands heavy loads and thermal cycling, ensuring long-term reliability in construction, manufacturing, and electrical enclosures where consistent clamping force is critical.
Specification Summary & Compliance
This washer adheres to inch system measurements with an inner diameter of 0.281", outer diameter of 0.5", and thickness range of 0.056-0.071". The clipped width is specified as 0.45" for compatibility with standard 1/4" screws. It meets material and manufacturing standards for durability and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting eco-friendly industrial practices.
