S-94830A142 1 1/4"-12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through innovative Flex-Top locking technology that maintains secure fastening in high-stress environments
• Space-saving thin profile (49/64" height) ideal for applications with limited clearance while maintaining full locking performance
• Precision UNF fine threading (1 1/4"-12) with Class 2B fit ensures smooth engagement and reliable thread mating
• Easy installation and removal with standard external hex drive (1 13/16" width) compatible with common wrench tools
• Durable steel construction provides excellent strength and corrosion resistance for long service life
• Right-hand threading compatibility with standard UNF fastener systems for seamless integration
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in industrial applications

Professional Applications & Engineering Value

This high-performance thin locknut addresses critical vibration-induced loosening challenges in demanding industrial environments. The Flex-Top locking mechanism creates consistent radial pressure along the thread engagement, maintaining clamp force where conventional nuts fail. Engineered with UNF fine threading (1 1/4"-12) and Class 2B thread fit, it delivers precise mating with mating components while the external hex drive ensures straightforward installation in confined spaces. The steel construction provides the necessary tensile strength for heavy machinery, automotive assemblies, and structural applications where vibration resistance and reliability are paramount. Its thin profile makes it particularly valuable in compact designs without compromising locking performance.

Specification Summary & Compliance

This locknut features Class 2B thread fit tolerance per UNF standards, ensuring precise thread engagement and reliable performance. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental and safety compliance for industrial use. Dimensions include 1 13/16" width across flats and 49/64" height, maintaining the thin profile while delivering full locking functionality through the Flex-Top design.