S-90078A220 M8 Tamper Resistant Nuts

Key Features & Benefits at a Glance

• Enhanced Security Protection: Tamper-resistant drilled spanner design prevents unauthorized removal with standard tools, safeguarding critical equipment and infrastructure.
• Corrosion-Resistant Construction: Made from durable zinc alloy, providing reliable protection against rust and environmental degradation in demanding industrial settings.
• Precision Thread Engagement: Class 6G thread fit ensures consistent, secure fastening with reduced risk of cross-threading or loosening under vibration.
• Optimized for Industrial Use: M8 coarse thread (1.25mm pitch) with right-hand threading enables quick installation and high resistance to vibrational loosening.
• Global Compliance Assurance: Meets RoHS 3 and REACH environmental standards, ensuring safe use in regulated industries and international markets.
• Superior Mechanical Strength: Robust 1" diameter and 1/4" height profile delivers excellent load distribution and clamping force for long-term reliability.
• Tamper-Proof Drive System: Special drilled spanner drive requires proprietary tools, adding an essential layer of security to public or high-risk installations.

Professional Applications & Engineering Value

Engineered for industrial security applications where unauthorized access poses significant risks, these M8 tamper resistant nuts deliver critical protection through their unique drilled spanner design and zinc alloy construction. The metric coarse thread (1.25mm pitch) combined with Class 6G thread fit ensures rapid installation while maintaining vibration resistance in machinery, electrical enclosures, and public infrastructure. The right-hand threading provides familiar installation while the tamper-proof mechanism addresses security vulnerabilities in transportation, utilities, and manufacturing equipment. This combination of security features and metric fastener standards makes them ideal for global projects requiring both reliable fastening and vandal-resistant properties.

Specification Summary & Compliance

This security nut features M8 x 1.25mm metric coarse thread with Class 6G thread fit tolerance, ensuring precision engagement with standard metric bolts. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances. The zinc alloy material provides consistent mechanical properties while the drilled spanner drive style maintains tamper-resistant integrity. Dimensions include 1" diameter and 1/4" height for standardized application across industrial security fastening systems.