S-95479A205 1 1/4"-12 ASME B18.2.2 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black oxide steel coating, ideal for harsh industrial environments and extending service life.
- Superior load-bearing capacity from Grade 5 strength classification, ensuring reliable performance in heavy-duty applications.
- Precise thread engagement with Class 2B fit and UNF fine threads, reducing vibration loosening and improving assembly accuracy.
- Broad compatibility with ASME B18.2.2 standards, guaranteeing interchangeability and consistent quality in mechanical systems.
- Easy installation and removal using standard external hex drive tools, saving time and labor costs in maintenance.
- Environmental compliance with RoHS 3 and REACH regulations, supporting sustainable and safe manufacturing practices.
- Optimized dimensions (1 7/8" width, 1 1/16" height) for secure gripping and space-efficient designs in constrained assemblies.
Professional Applications & Engineering Value
This Grade 5 black oxide steel hex nut is engineered to address critical challenges in demanding sectors like machinery, automotive, and construction. Its UNF fine threads and Class 2B fit provide exceptional resistance to shock and vibration, minimizing the risk of fastener failure in dynamic loads. The black oxide surface treatment offers a durable barrier against moisture and chemicals, reducing maintenance frequency in corrosive settings. By adhering to ASME B18.2.2 specifications, it ensures seamless integration with standardized components, enhancing assembly efficiency and reliability for heavy-duty industrial fasteners. Ideal for applications requiring high tensile strength and long-term durability, this nut delivers consistent performance under stress while meeting rigorous compliance standards.
Specification Summary & Compliance
This hex nut conforms to ASME B18.2.2 standards with a 1 1/4"-12 UNF fine thread and Class 2B thread fit for precise dimensional accuracy. It is manufactured from black oxide steel with a Grade 5 strength rating, and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.
