S-92908A588 8.4 mm ID x 32 mm 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 with black-oxide steel finish, extending service life in harsh industrial environments
- Precise 90° countersink angle ensures flush mounting with matching screw heads for smooth, professional finishes
- Exceptional hardness rating (Rockwell 15N80) provides reliable load distribution and prevents deformation under stress
- Optimized dimensional accuracy with 8.4mm ID and 32mm OD for perfect M8 screw compatibility and secure fastening
- Comprehensive regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries
- Versatile metric sizing enables seamless integration with international equipment and fastener systems
- Durable 4.5-5.1mm thickness delivers consistent performance in high-vibration applications
Professional Applications & Engineering Value
This M8 countersunk washer addresses critical engineering challenges in industrial assembly where flush surface requirements meet demanding mechanical stresses. The black-oxide steel construction provides essential corrosion protection while maintaining dimensional stability, preventing galvanic reactions in mixed-material assemblies. The precision 90° countersink angle perfectly mates with standard countersunk screw heads, eliminating protrusions in machinery, automotive components, and structural frameworks. With its Rockwell 15N80 hardness, this washer maintains integrity under repeated loading cycles, making it ideal for heavy-duty applications including manufacturing equipment, transportation systems, and construction machinery where vibration resistance and long-term reliability are paramount.
Specification Summary & Compliance
Manufactured to precise metric dimensions (8.4mm ID × 32mm OD × 4.5-5.1mm thickness) with standard 90° countersink geometry for M8 screw compatibility. The black-oxide steel construction meets industry standards for corrosion resistance and mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations current through January 2023 SVHC list.
