S-98577A120 1/4"-20 Tamper Resistant Nuts

Key Features & Benefits at a Glance

• Enhanced tamper resistance with serrated edge design that bites into surfaces to prevent unauthorized removal
• Lightweight durability from aluminum construction offering corrosion resistance without sacrificing strength
• Reliable vibration resistance through serrated locking action that maintains clamp force in high-motion environments
• Easy installation with standard UNC 1/4"-20 coarse threads and Class 2B fit for quick assembly with common tools
• Industrial safety compliance meeting RoHS 3 standards for hazardous substance restrictions
• Secure right-hand threading providing consistent engagement with standard mating components
• Compact profile with 1/2" diameter and 3/16" height for space-constrained applications

Professional Applications & Engineering Value

This aluminum tamper resistant locknut addresses critical security and maintenance challenges in industrial settings. The serrated edge design creates permanent biting action into contact surfaces, eliminating rotation from vibration or intentional tampering in public infrastructure, machinery guards, and electrical enclosures. The UNC coarse thread profile ensures compatibility with standard 1/4"-20 fasteners while the Class 2B thread fit provides sufficient clearance for rapid installation without compromising holding strength. Aluminum construction offers excellent corrosion resistance for outdoor or harsh environments while maintaining a lightweight profile. These security nuts are engineered to prevent unauthorized access in transportation, manufacturing, and public facility applications where tampering poses safety or operational risks.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 1/4"-20 UNC coarse threads and Class 2B thread fit for consistent performance. Features right-hand thread direction with 1/2" diameter and 3/16" height specifications. Compliant with RoHS 3 (2015/863/EU) regulations restricting hazardous substances for industrial safety applications.