S-90623A220 7/8"-14 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through advanced two-piece clamp locking technology that maintains secure fastening under extreme conditions
• Precise thread engagement with Class 2B thread fit ensuring reliable performance and reduced risk of cross-threading
• Heavy-duty construction using durable steel material for long-lasting performance in demanding industrial applications
• Optimal torque transmission with standard external hex drive design for easy installation using common tools
• Enhanced safety compliance meeting both RoHS 3 and REACH environmental standards for responsible manufacturing
• Fine thread advantage with 7/8"-14 UNF configuration providing better tension control and superior holding power
• Standard hex profile with 1 5/16" width offering compatibility with standard wrenches and sockets

Professional Applications & Engineering Value

This heavy-duty steel locknut with two-piece clamp locking technology addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment applications. The 7/8"-14 UNF fine thread configuration delivers superior clamping force distribution, while the Class 2B thread fit ensures precise engagement with mating components. Engineered for external hex drive compatibility, this locknut provides reliable performance in high-stress environments where maintaining bolt preload is essential for operational safety and equipment longevity. The robust steel construction withstands repeated torque applications without compromising the locking mechanism's effectiveness, making it ideal for maintenance-critical applications where failure is not an option.

Specification Summary & Compliance

This locknut features 7/8"-14 UNF fine threads with Class 2B thread fit precision, right-hand thread direction, and standard hex profile measuring 1 5/16" across flats with 1 13/64" height. Manufactured to inch system standards, the two-piece clamp locking design provides consistent performance across temperature variations and dynamic loading conditions. The product is fully RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements, ensuring environmental responsibility while maintaining the mechanical properties necessary for industrial fastening applications.