S-90507A260 5/8"-11 Cap Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread locking technology that prevents loosening under dynamic loads
• Excellent corrosion protection with 18-8 stainless steel construction for long-term reliability in harsh environments
• Precise thread engagement with Class 2B thread fit ensuring consistent performance and easy installation
• Robust mechanical strength from the standard cap nut profile and external hex drive for high-torque applications
• Quick installation efficiency with coarse UNC threading that reduces assembly time and prevents cross-threading
• Comprehensive safety compliance meeting RoHS 3 and REACH environmental standards for global industrial use
• Optimal dimensional stability with 1" width and 63/64" height providing reliable seating and uniform clamping force

Professional Applications & Engineering Value

This 5/8"-11 UNC cap nut delivers critical engineering solutions for industrial applications where vibration-induced fastener failure is a primary concern. The distorted thread locking mechanism creates permanent friction along the thread engagement, effectively resisting rotational forces in machinery, automotive assemblies, and structural frameworks. Manufactured from 18-8 stainless steel, this external hex drive locknut maintains integrity in corrosive environments including marine applications, chemical processing equipment, and outdoor infrastructure. The coarse thread design combined with Class 2B thread fit ensures rapid installation while maintaining precise tolerances, reducing assembly time and preventing galling in high-volume production environments. This industrial-grade cap nut provides reliable performance where secure fastening under continuous stress is non-negotiable.

Specification Summary & Compliance

This heavy-duty cap locknut features 5/8"-11 UNC coarse threading with Class 2B thread fit for consistent engagement and dimensional accuracy. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe usage across global industrial markets. The distorted thread locking type and right-hand thread direction provide reliable anti-vibration performance while maintaining compatibility with standard UNC threaded components.