S-90047A145 5/8"-11 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision distorted center lock technology that maintains clamping force in high-stress environments
• Excellent corrosion resistance with 18-8 stainless steel construction for extended service life in harsh industrial conditions
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy assembly
• Heavy-duty performance with coarse UNC threads providing strong holding power in demanding applications
• Easy installation and removal using standard external hex drive compatible with common wrenching tools
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use across various industries
• Right-hand threading for standard installation procedures and compatibility with conventional fastening systems

Professional Applications & Engineering Value

This 5/8"-11 UNC locknut delivers exceptional engineering value through its distorted thread center lock design that actively resists loosening under continuous vibration and dynamic loads. The 18-8 stainless steel material provides outstanding corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor elements. The coarse thread configuration ensures rapid installation and reliable performance in heavy machinery, construction equipment, and industrial assemblies where vibration-induced failure is a primary concern. This external hex locknut combines the familiarity of standard wrenching with advanced locking technology, offering maintenance-free security in critical joints without requiring additional locking components.

Specification Summary & Compliance

This heavy-duty locknut features 5/8"-11 UNC coarse threads with Class 2B thread fit for precise engagement and consistent performance. The distorted thread center lock mechanism provides permanent vibration resistance without compromising thread integrity. Manufactured from 18-8 stainless steel with dimensions of 15/16" width and 35/64" height, this fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and regulatory adherence for industrial applications worldwide.