S-98577A130 5/16"-18 Tamper Resistant Nuts

Key Features & Benefits at a Glance

• Enhanced tamper resistance prevents unauthorized removal in high-security applications
• Superior vibration resistance through serrated edge technology maintains joint integrity in dynamic environments
• Lightweight aluminum construction provides excellent corrosion resistance while reducing overall assembly weight
• Reliable coarse thread engagement with UNC 5/16"-18 specification ensures quick installation and secure fastening
• Precision Class 2B thread fit guarantees consistent performance and compatibility with standard mating components
• RoHS 3 compliance meets environmental regulations for restricted substances in industrial applications
• Compact 3/16" height profile offers space-saving advantages in constrained assembly designs

Professional Applications & Engineering Value

This aluminum tamper resistant locknut with serrated edge technology addresses critical engineering challenges in security-sensitive and vibration-prone environments. The specially designed serrations bite into mating surfaces, creating permanent deformation that prevents loosening under continuous vibration and thermal cycling. The UNC coarse thread configuration ensures rapid installation while maintaining Class 2B thread fit precision for reliable performance in industrial machinery, electronic enclosures, and public infrastructure. The aluminum material provides natural corrosion resistance without additional coatings, making it ideal for applications where weight reduction and environmental durability are paramount concerns. This combination of security features and engineering precision delivers long-term reliability in demanding operational conditions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit tolerance and UNC 5/16"-18 coarse thread specification. The locknut features right-hand thread direction with 1/2" diameter and 3/16" height dimensions. Compliant with RoHS 3 (2015/863/EU) regulations for environmental safety and manufactured according to industry-standard quality control procedures for consistent performance in professional applications.