S-90013A115 1/2"-13 Tamper Resistant Nuts

Key Features & Benefits at a Glance

• Maximum tamper resistance with specialized external hex design that deters unauthorized removal in public or high-security areas
• Exceptional durability from corrosion-resistant zinc alloy construction, ensuring long service life in harsh industrial environments
• High-strength performance with 360 in-lbs breaking torque, providing reliable fastening under heavy loads and vibration
• Precise thread engagement with Class 2B thread fit and coarse UNC threads for quick installation and reduced cross-threading risks
• Broad compatibility with standard 1/2"-13 UNC bolts, making it ideal for replacement or new assembly projects
• Regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries without hazardous substances
• Optimized dimensions (1" width, 3/4" height) for easy handling and tool access while maintaining a low 11/32" installed profile

Professional Applications & Engineering Value

This tamper resistant nut is engineered to address critical security and reliability challenges in industrial settings. The zinc alloy material offers excellent corrosion resistance, extending service life in outdoor or chemically exposed applications like public infrastructure, machinery guards, and transportation equipment. Its external hex drive allows standard tool use while incorporating tamper-proof features that prevent casual removal, reducing vandalism and unauthorized access risks. The coarse UNC thread and Class 2B thread fit ensure rapid assembly with minimal thread galling, maintaining consistent clamping force in high-vibration environments. With a 360 in-lbs breaking torque rating, it withstands substantial operational stresses, making it suitable for heavy-duty industrial security hardware where fastener integrity is paramount.

Specification Summary & Compliance

This nut features 1/2"-13 UNC coarse threads with Class 2B thread fit per standard inch system tolerances, ensuring precise engagement with mating bolts. Manufacturing adheres to industry standards for external hex tamper proof nuts, with dimensions of 1" width and 3/4" height (11/32" installed height). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances for safe industrial use.