S-94140A131 1/4"-20 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through innovative Flex-Top locking technology that maintains clamp force under dynamic loads
• Exceptional corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Space-saving thin profile (7/32" height) ideal for applications with limited clearance while maintaining full locking functionality
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy installation
• Optimized torque transmission through standard 7/16" external hex drive for secure fastening with common tools
• Industry-standard compatibility with 1/4"-20 UNC coarse threads for broad application across equipment and machinery
• Environmental compliance assurance meeting RoHS 3 and REACH standards for responsible manufacturing

Professional Applications & Engineering Value

This 1/4"-20 UNC thin Flex-Top locknut addresses critical vibration-induced loosening challenges in industrial assemblies. The 18-8 stainless steel construction provides inherent corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor elements. The Flex-Top locking mechanism creates consistent radial pressure along the thread engagement, maintaining secure fastening without damaging mating threads. The thin profile design allows installation in confined spaces where standard locknuts cannot fit, while the external hex drive ensures compatibility with standard wrenches. These engineering features make it particularly valuable for vibration-resistant applications in machinery, automotive components, electrical enclosures, and industrial equipment where reliability is paramount.

Specification Summary & Compliance

This locknut features 1/4"-20 UNC coarse threads with Class 2B thread fit for standard industrial applications. The external hex measures 7/16" across flats with a 7/32" height thin profile. Manufactured from 18-8 stainless steel, the fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring responsible manufacturing practices and material safety.