S-94140A147 3/8"-16 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with Flex-Top locking technology that maintains clamp load in high-stress environments
• Corrosion-resistant performance thanks to 18-8 stainless steel construction for extended service life in harsh conditions
• Space-saving thin profile (9/32" height) ideal for applications with limited clearance while maintaining full locking functionality
• Reliable thread engagement with Class 2B thread fit ensuring consistent installation and removal without galling
• Easy installation and removal using standard wrench tools through external hex drive design
• Industry-standard compatibility with 3/8"-16 UNC coarse threads for broad application across equipment and machinery
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global manufacturing requirements

Professional Applications & Engineering Value

This 18-8 stainless steel locknut combines material durability with advanced Flex-Top locking technology to solve critical vibration-induced loosening challenges in industrial applications. The thin profile design provides essential locking functionality where standard nuts cannot fit, while maintaining the full strength of UNC coarse threads. Engineered for machinery, automotive, and electrical enclosures, the corrosion-resistant properties of stainless steel ensure long-term reliability in humid or chemical environments. The external hex drive allows for efficient installation with common tools, reducing assembly time while the Class 2B thread fit guarantees consistent performance across repeated maintenance cycles. This locknut delivers engineered vibration resistance where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit and UNC thread specifications. Features 3/8"-16 coarse threading with right-hand direction, 9/16" width across flats, and 9/32" height thin profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial applications. The external hex drive style conforms to standard wrenching practices for reliable installation torque control.