S-92501A522 1/4"-28 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through top lock distorted thread technology that maintains secure fastening in high-vibration environments
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding industrial conditions
• Reliable strength performance meeting ASTM Grade C specifications for consistent load-bearing capacity
• Precision fine threading with 1/4"-28 UNF Class 2B thread fit ensuring smooth installation and optimal engagement
• Standard external hex drive design for compatibility with common wrenching tools and efficient installation
• Right-hand thread direction following industry standards for straightforward assembly in conventional applications
• Environmental compliance assurance with REACH and RoHS 3 certification for responsible manufacturing standards

Professional Applications & Engineering Value

This distorted thread locknut delivers exceptional engineering value through its top lock technology that actively resists loosening under sustained vibration and dynamic loads. The zinc-plated steel construction provides crucial corrosion resistance while maintaining the ASTM Grade C strength rating required for industrial applications. The 1/4"-28 UNF fine thread configuration ensures precise mating with corresponding fasteners, while the Class 2B thread fit guarantees consistent performance across multiple installations. Ideal for machinery, automotive assemblies, and equipment subjected to constant motion, this external hex locknut solves the critical challenge of maintaining joint integrity in vibration-intensive environments where standard nuts frequently fail.

Specification Summary & Compliance

This locknut features precise Class 2B thread fit tolerances with UNF thread standards (1/4"-28 fine thread) and right-hand thread direction. Manufacturing complies with ASTM Grade C strength requirements with dimensions of 7/16" width and 7/32" height. The product meets REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental compliance standards, ensuring regulatory adherence for industrial applications.