S-97135A225 5/16"-24 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through nylon insert locking that maintains secure fastening in high-motion environments
- Exceptional durability with Grade 8 strength classification, providing reliable performance in heavy-duty applications
- Enhanced corrosion protection from zinc yellow-chromate plating that extends service life in demanding conditions
- High-temperature capability with nylon insert rated to 220°F (104°C) for thermal stability in heated applications
- Precise thread engagement with Class 2B fit and UNF fine threading for secure, accurate installation
- Easy installation and removal using standard 1/2" external hex drive compatible with common tools
- Reliable right-hand threading following industry standards for consistent performance across applications
Professional Applications & Engineering Value
This Grade 8 nylon insert locknut delivers critical vibration resistance where conventional fasteners fail. The nylon locking insert creates consistent friction against mating threads, preventing loosening under extreme dynamic loads in machinery, automotive, and industrial equipment. The zinc yellow-chromate plated steel construction provides dual-layer corrosion protection while maintaining the Grade 8 strength rating for high-stress applications. With UNF fine threading and Class 2B thread fit, these locknuts ensure precise engagement in critical assemblies where vibration-induced failure is not an option. The 220°F temperature rating makes them suitable for engine compartments, industrial motors, and equipment experiencing thermal cycling.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2B thread fit and UNF (Unified National Fine) 5/16"-24 threading. Features standard 1/2" hex drive and 11/32" height profile. Meets Grade 8 strength requirements with zinc yellow-chromate plating for corrosion resistance. The nylon insert locking mechanism complies with industry locking fastener standards for vibration-resistant applications.
