S-98789A220 M8 Tamper Resistant Nuts
Tamper Resistant Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Enhanced tamper resistance with external square drive design prevents unauthorized removal using standard tools
- Superior corrosion protection through zinc yellow-chromate plating extends service life in harsh environments
- Precise Class 6H thread fit ensures reliable engagement and consistent clamping force in metric applications
- Coarse thread configuration enables faster installation and reduced cross-threading risks
- Robust steel construction delivers high strength-to-weight ratio for demanding industrial applications
- Comprehensive compliance with RoHS 3 and REACH regulations meets international environmental standards
- Metric M8 x 1.25mm sizing provides compatibility with standard metric bolt systems worldwide
Professional Applications & Engineering Value
These tamper resistant nuts address critical security challenges in public infrastructure, industrial machinery, and transportation systems where unauthorized access poses safety risks. The zinc yellow-chromate plated steel construction provides dual-layer protection against corrosion while maintaining structural integrity. The external square drive requires specialized tools for installation and removal, effectively deterring tampering in public spaces, electrical enclosures, and municipal fixtures. The metric coarse thread design ensures quick assembly in high-volume production environments while the Class 6H thread fit maintains precise tolerances for vibration-resistant fastening. These security nuts are engineered for permanent installations where reliability and anti-tamper performance are paramount.
Specification Summary & Compliance
This M8 x 1.25mm tamper resistant nut features Class 6H thread fit per metric standards with coarse thread spacing for optimal performance. Manufacturing complies with international thread specifications for metric fasteners. The product is fully RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements regarding substance restrictions, ensuring environmental responsibility in industrial applications.
