S-97135A112 1 1/8"-12 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
- Exceptional vibration resistance through nylon insert locking technology that maintains secure fastening in high-motion environments
- Superior corrosion protection with zinc yellow-chromate plating that extends service life in harsh industrial conditions
- High-strength performance meeting Grade 8 specifications for demanding applications requiring reliable load-bearing capability
- Precision fine threading (1 1/8"-12 UNF) ensures optimal engagement and distribution of clamping forces
- Enhanced temperature tolerance with nylon insert rated to 220°F for stable performance in thermal cycling environments
- Consistent thread fit with Class 2B tolerance providing reliable mating with male threaded components
- Standard external hex design enables easy installation and removal with common wrench tools
Professional Applications & Engineering Value
This Grade 8 nylon insert locknut delivers critical vibration-resistant performance in heavy machinery, automotive assemblies, and industrial equipment where constant motion threatens fastener integrity. The UNF fine threading (1 1/8"-12) provides superior resistance to loosening under dynamic loads compared to coarse threads, while the nylon insert creates consistent friction that maintains clamp load without damaging mating threads. The zinc yellow-chromate plating offers dual protection against corrosion and abrasion, extending service intervals in exposed environments. Engineered for Class 2B thread fit, this locknut ensures precise engagement with male fasteners, eliminating play that compromises joint integrity in structural applications.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2B thread fit and UNF fine threading (1 1/8"-12) specifications. The external hex drive conforms to standard wrenching dimensions (1 5/8" width) for compatibility with industrial tools. Meets Grade 8 strength classification requirements and features right-hand threading direction. The zinc yellow-chromate plating provides RoHS-compliant corrosion protection while the nylon insert maintains locking performance up to 220°F operating temperature.
