S-92501A514 5/8"-18 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread top lock design, ensuring reliable performance in high-stress environments.
• High-strength ASTM Grade C steel construction provides exceptional durability and load-bearing capacity for heavy-duty applications.
• Precise Class 2B thread fit guarantees smooth assembly and secure mating with UNF fine threads, reducing the risk of cross-threading.
• External hex drive style allows for easy installation and removal using standard tools, improving maintenance efficiency.
• Full compliance with REACH and RoHS 3 regulations ensures environmental safety and meets global industrial standards.
• Standard 15/16" hex profile offers compatibility with common wrenches, streamlining integration into existing systems.
• Fine UNF 5/8"-18 threading delivers enhanced clamping force and resistance to loosening under dynamic loads.

Professional Applications & Engineering Value

This 5/8"-18 UNF steel locknut is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and mechanical fatigue. The distorted thread top lock mechanism creates consistent interference, maintaining clamp load in demanding applications like heavy machinery, automotive assemblies, and construction equipment. Made from ASTM Grade C steel, it offers robust strength and corrosion resistance, extending service life in harsh environments. The fine UNF thread and Class 2B fit ensure precise engagement, reducing installation errors and enhancing safety. Ideal for vibration-resistant fastening in sectors requiring reliable, long-term performance, this locknut provides a cost-effective solution for minimizing downtime and maintenance costs.

Specification Summary & Compliance

This locknut adheres to Class 2B thread fit tolerances per UNF standards, ensuring dimensional accuracy and compatibility. It meets ASTM Grade C strength requirements for consistent performance under load. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, confirming its suitability for global industrial use without hazardous substances. Manufactured to precise specifications, including a 15/16" width and 35/64" height, it supports reliable fastening in accordance with industry norms.