S-97135A270 5/8"-11 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon insert locking that maintains secure fastening in high-stress environments
• Exceptional corrosion protection from zinc yellow-chromate plating, extending service life in harsh industrial conditions
• High-temperature performance with nylon insert rated for continuous operation up to 220°F (104°C)
• Premium strength reliability with Grade 8 classification, ensuring maximum load-bearing capacity for heavy-duty applications
• Precise thread engagement through Class 2B thread fit, providing consistent installation and removal performance
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Optimized for coarse thread applications with 5/8"-11 UNC threading, ideal for rapid assembly in industrial settings

Professional Applications & Engineering Value

This Grade 8 nylon insert lock nut delivers critical vibration resistance in demanding industrial environments where loosening under dynamic loads poses significant safety risks. The zinc yellow-chromate plated steel construction provides superior corrosion protection, making it ideal for outdoor equipment, automotive assemblies, and machinery exposed to moisture or chemicals. The nylon insert locking mechanism maintains consistent clamping force without damaging threads, while the 220°F temperature rating ensures reliability in engine compartments and high-heat industrial applications. With UNC coarse threading and Class 2B thread fit, this locknut offers quick installation and reliable performance in heavy machinery, construction equipment, and transportation systems where vibration-induced failure is a constant concern.

Specification Summary & Compliance

This locknut features 5/8"-11 UNC coarse threading with Class 2B thread fit for precise dimensional accuracy and consistent performance. Manufactured to Grade 8 strength standards with dimensions of 15/16" width and 3/4" height. The external hex drive design ensures compatibility with standard wrench tools. The zinc yellow-chromate plating provides corrosion resistance while meeting industry standards for heavy-duty fastening applications. Product complies with relevant industrial specifications for locknuts and is suitable for use in various mechanical and structural applications requiring reliable vibration-resistant fastening solutions.