S-97135A442 1 1/2"-12 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology that maintains secure fastening in high-stress environments
• Exceptional temperature tolerance with nylon insert rated for continuous operation up to 220°F without compromising locking performance
• Premium Grade 8 strength classification ensures reliable performance in heavy-duty applications and demanding industrial settings
• Precision UNF fine threading provides superior thread engagement and consistent clamping force distribution
• Enhanced corrosion protection through black-oxide steel finish that resists environmental degradation
• Optimized external hex design allows for standard wrench access and high torque application capabilities
• Regulatory compliance assurance with REACH and RoHS 3 certifications for global market acceptance

Professional Applications & Engineering Value

This Grade 8 nylon insert locknut delivers critical engineering solutions for industrial applications where vibration-induced loosening poses significant safety and performance risks. The black-oxide steel construction combined with the precision UNF fine threading creates a robust fastening system that maintains integrity under extreme conditions. The nylon insert locking mechanism provides consistent friction and reusable locking capability without damaging mating threads, making it ideal for machinery, automotive, and heavy equipment applications requiring frequent maintenance. With its 220°F temperature rating, this locknut performs reliably in engine compartments, industrial ovens, and other high-temperature environments where conventional locking methods fail. The external hex drive style ensures compatibility with standard industrial tools while facilitating proper torque application.

Specification Summary & Compliance

This heavy-duty locknut features precision Class 2B thread fit with 1 1/2"-12 UNF fine threading and right-hand thread direction, ensuring optimal mating with corresponding male threads. Manufacturing adheres to strict dimensional standards with 2 13/64" width and 1 39/64" height specifications. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, meeting international environmental and safety standards for industrial components.