S-92501A533 5/8"-11 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread top lock technology that maintains secure fastening under extreme conditions
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh industrial environments
• Reliable mechanical strength meeting ASTM Grade C specifications for heavy-duty applications requiring consistent performance
• Precise thread engagement with Class 2B thread fit ensuring smooth installation and optimal clamping force distribution
• Industry-standard compatibility with 5/8"-11 UNC coarse threads for seamless integration with existing equipment and components
• Easy installation and removal using standard wrenches on the 15/16" external hex drive profile
• Environmental compliance assurance meeting both REACH and RoHS 3 standards for responsible manufacturing practices

Professional Applications & Engineering Value

This zinc-plated steel locknut with distorted thread technology addresses critical vibration-induced loosening challenges in industrial applications. The top lock design creates controlled thread distortion that generates consistent prevailing torque, maintaining clamp load integrity in high-vibration environments such as heavy machinery, automotive assemblies, and construction equipment. The UNC coarse thread configuration provides rapid installation while the external hex drive enables high torque application using standard tools. Manufactured from ASTM Grade C material, this locknut delivers reliable performance in applications where vibration resistance and long-term fastening security are paramount, making it ideal for maintenance operations and original equipment manufacturing across multiple industrial sectors.

Specification Summary & Compliance

This 5/8"-11 UNC locknut features Class 2B thread fit tolerances for precise engagement and optimal performance. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring responsible manufacturing practices. Manufactured to ASTM Grade C strength specifications, the locknut maintains dimensional accuracy with a 15/16" width across flats and 35/64" height profile. The right-hand thread direction and coarse thread spacing follow industry-standard UNC specifications for compatibility with a wide range of industrial applications.