S-95479A335 1 3/8"-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
- Superior corrosion resistance from black oxide steel coating, extending service life in harsh industrial environments
- High-strength Grade 5 construction ensures reliable performance under heavy loads and vibration
- Precision Class 2B thread fit provides smooth assembly and secure fastening with minimal risk of cross-threading
- Fine UNF thread spacing delivers enhanced clamping force and vibration resistance compared to coarse threads
- ASME B18.2.2 compliance guarantees dimensional accuracy and interchangeability with standard components
- Environmental regulation compliance with RoHS 3 and REACH ensures safe usage in regulated industries
- Standard external hex design allows for easy installation with common wrench tools
Professional Applications & Engineering Value
This 1 3/8"-12 UNF Grade 5 hex nut delivers exceptional engineering value in demanding applications where vibration resistance and corrosion protection are critical. The black oxide steel construction provides superior protection against rust and oxidation, making it ideal for outdoor equipment, machinery, and industrial assemblies exposed to moisture or chemicals. The fine thread spacing and Class 2B thread fit ensure precise engagement with mating components, reducing the risk of loosening under dynamic loads. Engineered to ASME B18.2.2 standards, this heavy-duty fastener maintains dimensional consistency across industrial applications, from construction equipment to manufacturing machinery, where reliable, long-term fastening solutions are essential for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
This hex nut features 1 3/8"-12 UNF right-hand threads with Class 2B thread fit tolerance for precise mating. Manufactured from Grade 5 steel with dimensions of 2 1/16" width and 1 3/16" height, it conforms to ASME B18.2.2 specifications for inch-system fasteners. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across various industrial sectors.
