S-94140A151 3/8"-24 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with Flex-Top locking technology that maintains secure fastening under dynamic loads
• Excellent corrosion protection from 18-8 stainless steel construction, ideal for harsh industrial environments
• Space-saving thin profile (9/32" height) enables use in confined assembly applications
• Precision fine threading (3/8"-24 UNF Class 2B) ensures smooth engagement and reliable torque performance
• Easy installation and removal with standard external hex drive design using common wrench tools
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements
• Durable locking performance with right-hand threading that maintains integrity through multiple installation cycles

Professional Applications & Engineering Value

This thin profile locknut addresses critical vibration-induced loosening challenges in industrial equipment, machinery, and automotive assemblies. The Flex-Top locking mechanism creates consistent friction along the thread engagement, eliminating the need for additional locking components while maintaining Class 2B thread precision. Manufactured from 18-8 stainless steel, this external hex locknut delivers exceptional corrosion resistance in demanding environments where moisture, chemicals, or temperature variations would compromise ordinary fasteners. The UNF fine thread configuration (3/8"-24) provides superior load distribution compared to coarse threads, making it ideal for precision equipment requiring stable, vibration-resistant connections that maintain clamping force through operational cycles.

Specification Summary & Compliance

This locknut features Class 2B thread fit per UNF standards with precise 3/8"-24 fine threading and right-hand direction. The external hex drive measures 9/16" across flats with a thin profile height of 9/32". Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety compliance. The combination of 18-8 stainless steel material and Flex-Top locking technology meets industrial requirements for reliable, reusable locking fasteners in critical applications.