S-97135A406 1 1/2"-6 Locknuts

Key Features & Benefits at a Glance

• Exceptional vibration resistance through nylon insert locking mechanism, preventing loosening in high-motion environments
• Heavy-duty Grade 8 strength rating ensures reliable performance under extreme mechanical loads and stress conditions
• Enhanced corrosion protection with zinc yellow-chromate plating, extending service life in harsh industrial environments
• High-temperature capability with nylon insert rated to 220°F, maintaining locking performance in heated applications
• Precision UNC coarse threading with Class 2B fit provides smooth installation and secure fastening engagement
• Standard external hex drive design allows for easy installation using common wrench tools
• Right-hand thread direction ensures compatibility with standard industrial equipment and fastening systems

Professional Applications & Engineering Value

This Grade 8 heavy-duty nylon insert locknut delivers critical engineering solutions for applications where vibration-induced loosening poses significant safety and performance risks. The nylon insert locking mechanism creates consistent friction against mating threads, effectively dampening vibrations in machinery, automotive assemblies, and structural frameworks. Manufactured from zinc yellow-chromate plated steel, this locknut provides superior corrosion resistance while maintaining the high tensile strength required for heavy-duty industrial applications. The UNC coarse thread profile with Class 2B fit ensures reliable engagement even in environments where debris accumulation might compromise finer thread forms. With temperature resistance up to 220°F, this fastener maintains its locking integrity in engine compartments, industrial equipment, and outdoor installations exposed to thermal cycling.

Specification Summary & Compliance

This locknut features precision 1 1/2"-6 UNC coarse threads with Class 2B thread fit for consistent engagement and reliable performance. The external hex drive measures 2 25/64" across flats with a 1 59/64" height, conforming to standard dimensional requirements. Manufactured to Grade 8 strength specifications, this fastener meets rigorous mechanical performance standards for heavy-duty applications. The zinc yellow-chromate plating provides corrosion protection while the nylon insert maintains locking effectiveness up to 220°F maximum temperature. Compliant with industry standards for inch-system fasteners and suitable for applications requiring reliable vibration resistance.