S-97135A427 5/8"-11 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon insert locking mechanism, preventing loosening under dynamic loads
• High-strength Grade 8 steel construction ensures reliable performance in demanding industrial applications
• Black-oxide surface treatment provides corrosion resistance and enhanced durability
• Wide temperature tolerance up to 220°F (104°C) for stable operation in various environments
• Precision UNC coarse threading with Class 2B fit for easy installation and secure fastening
• Standard external hex drive allows for straightforward installation using common tools
• Full regulatory compliance with REACH and RoHS 3 standards for safe industrial use

Professional Applications & Engineering Value

This Grade 8 nylon insert lock nut delivers exceptional engineering value in applications where vibration-induced loosening poses significant operational risks. The black-oxide steel construction combined with the nylon insert locking mechanism creates a reliable solution for machinery, automotive assemblies, and heavy equipment where constant motion and stress require permanent fastening security. The UNC coarse threading ensures quick installation while maintaining superior holding power, making it ideal for production environments where efficiency and reliability are paramount. With its 220°F temperature rating, this locknut performs consistently in industrial settings experiencing thermal fluctuations, providing engineers with a versatile component that addresses both mechanical and environmental challenges in vibration-prone applications.

Specification Summary & Compliance

This heavy-duty locknut features precise 5/8"-11 UNC coarse threading with Class 2B thread fit for optimal engagement and secure fastening. Manufactured to meet Grade 8 strength standards, the component ensures reliable performance under high-stress conditions. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, meeting the latest environmental and safety standards for industrial components. With dimensions of 15/16" width and 3/4" height, this locknut provides consistent dimensional accuracy for uniform installation across applications.