S-94820A490 3/4"-10 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the Flex-Top locking mechanism that maintains consistent clamping force in high-motion environments
• Enhanced corrosion protection with black-oxide steel construction for extended service life in demanding industrial conditions
• Reliable thread engagement with Class 2B thread fit ensuring smooth assembly and consistent locking performance
• Easy installation and removal using standard wrenches thanks to the external hex drive design and right-hand thread direction
• Optimized for heavy-duty applications with coarse UNC threading that resists loosening under extreme vibration and load stresses
• Compliance with environmental regulations meeting both RoHS 3 and REACH standards for safe use across global markets
• Standard hex profile compatibility with 1 1/16" width allowing integration with existing tooling and equipment

Professional Applications & Engineering Value

This black-oxide steel locknut with Flex-Top locking technology addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment. The innovative flex-top design creates continuous radial pressure against mating threads, maintaining secure fastening without requiring additional locking components. The UNC coarse thread profile provides superior resistance to cross-threading during high-speed assembly operations, while the Class 2B thread fit ensures consistent performance across temperature variations and dynamic loading conditions. Engineered for applications where vibration resistance and reliability are paramount, this external hex locknut delivers exceptional value in construction equipment, agricultural machinery, and industrial manufacturing systems where fastener failure is not an option.

Specification Summary & Compliance

This locknut features precision 3/4"-10 UNC coarse threads with Class 2B thread fit tolerance for optimal engagement. The standard hex profile measures 1 1/16" across flats with a height of 57/64". Manufactured to industry standards for external hex drive locknuts with right-hand thread direction. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety.