S-92908A128 0.14" ID x 0.5" OD Finishing Washers
Finishing 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 through black-oxide steel construction, extending service life in harsh industrial environments
- Precise 82° countersink angle ensures flush mounting with standard fasteners for clean, professional finishes
- Exceptional hardness rating (Rockwell 15N80) provides reliable performance under heavy mechanical stress
- Optimized dimensional accuracy with 0.14" ID and 0.5" OD for perfect compatibility with No. 5 screws
- Consistent thickness control (0.094-0.114") maintains uniform pressure distribution across fastened surfaces
- Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance
- Inch system compatibility ensures seamless integration with existing North American equipment and specifications
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these black-oxide steel countersunk washers solve critical fastening challenges where surface flushness and corrosion resistance are paramount. The 82° countersink angle perfectly matches standard fastener profiles, eliminating protrusions in machinery, automotive assemblies, and structural frameworks. The Rockwell 15N80 hardness ensures the washer maintains its structural integrity under vibration and load, while the black-oxide surface treatment provides essential protection against rust and chemical exposure. Ideal for No. 5 screw applications in manufacturing equipment, outdoor enclosures, and precision instruments, these washers deliver reliable performance where failure is not an option.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 0.14" inner diameter, 0.5" outer diameter, and controlled thickness range of 0.094-0.114". The 82° countersink angle conforms to industry-standard fastener specifications. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and fully compliant with REACH (EC 1907/2006) regulations current as of January 17, 2023. The inch system measurement ensures compatibility with North American industrial standards and specifications.
