S-90040A032 7/16"-14 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through center lock distorted thread technology that maintains clamping force in high-vibration environments
• Reliable locking performance with Class 2B thread fit ensuring consistent engagement and secure fastening
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in industrial conditions
• Grade 2 strength classification providing dependable mechanical performance for general industrial applications
• Standard external hex drive design for easy installation with common wrench tools
• Environmental compliance meeting both REACH and RoHS 3 standards for safe industrial use
• Coarse UNC thread profile offering quick assembly and reduced cross-threading risks

Professional Applications & Engineering Value

This 7/16"-14 UNC locknut delivers exceptional engineering value through its center lock distorted thread design, specifically engineered to combat vibration-induced loosening in demanding industrial environments. The zinc-plated steel construction provides essential corrosion resistance while maintaining Grade 2 strength for reliable performance in machinery, equipment assembly, and structural applications. The external hex drive configuration ensures compatibility with standard tools, streamlining installation processes in manufacturing and maintenance operations. The coarse thread profile facilitates rapid assembly while the distorted thread locking mechanism creates consistent friction to prevent back-off, making it ideal for automotive, construction, and industrial machinery where vibration resistance is critical.

Specification Summary & Compliance

This locknut features 7/16"-14 UNC coarse threads with Class 2B thread fit tolerance for precise engagement. The fastener meets Grade 2 strength classification and incorporates center lock distorted thread technology for secure locking performance. Manufacturing compliance includes adherence to REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards. Physical dimensions include 11/16" width across flats and 3/8" height profile with right-hand thread direction.