S-97135A116 2"-12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the nylon insert, ensuring secure fastening in high-stress environments
• Exceptional durability and strength with Grade 8 classification, supporting heavy-duty industrial applications
• Enhanced corrosion protection from zinc yellow-chromate plating, extending service life in harsh conditions
• Reliable high-temperature performance, with the nylon insert rated up to 220°F for stable operation
• Precise thread engagement with 2"-12 UN extra fine threads and Class 2B fit, minimizing loosening risks
• Easy installation and removal using standard external hex drive, compatible with common tools
• Wide industrial compatibility due to right-hand UN thread system, fitting standard assemblies

Professional Applications & Engineering Value

This Grade 8 nylon insert locknut is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion. The zinc yellow-chromate plated steel construction provides a robust barrier against moisture and chemicals, making it ideal for machinery, automotive, and structural applications where environmental exposure is a concern. The extra fine UN threads offer finer adjustment and better load distribution, reducing stress concentrations. With a nylon insert that maintains integrity up to 220°F, this locknut ensures reliable performance in elevated temperature operations, preventing accidental disassembly and enhancing safety. Its external hex drive allows for straightforward installation with standard wrenches, streamlining maintenance and assembly processes in heavy-duty industrial applications.

Specification Summary & Compliance

This locknut features a 2"-12 UN extra fine thread with Class 2B thread fit for precise tolerances, adhering to standard UN thread specifications. The external hex drive and standard profile ensure compatibility with common tools. It is manufactured from high-strength steel with zinc yellow-chromate plating for corrosion resistance and meets Grade 8 strength requirements, suitable for demanding applications. Compliant with industry standards for material and threading, it aligns with general engineering practices for reliability and safety.