S-90242A181 6-40 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 with Black-Oxide 316 Stainless Steel construction, ideal for harsh industrial and marine environments.
- Precise thread engagement ensured by Class 2B thread fit, reducing the risk of cross-threading and ensuring reliable fastening.
- Enhanced durability from the fine UNF thread design, providing greater tensile strength and vibration resistance in critical applications.
- Easy installation and removal with a standard external hex drive profile, compatible with common wrenches for efficient assembly.
- Compliance with stringent regulations, including RoHS 3 and REACH, ensuring safety and environmental responsibility in your supply chain.
- Right-hand thread direction for standard operation, facilitating straightforward integration with existing components.
- Accurate dimensional fit with 5/16" width and 7/64" height, designed for consistent performance in inch-based systems.
Professional Applications & Engineering Value
This 6-40 UNF fine thread hex nut is engineered to address common challenges in precision fastening, such as corrosion-induced failure and thread wear. The Black-Oxide 316 Stainless Steel material provides exceptional resistance to chemicals, saltwater, and high temperatures, making it a reliable choice for industrial machinery, marine equipment, and automotive assemblies. The fine thread spacing and Class 2B thread fit ensure tight, secure connections that minimize loosening under vibration, while the external hex drive allows for quick installation with standard tools. By integrating this nut into your designs, you enhance longevity and reduce maintenance costs in demanding environments.
Specification Summary & Compliance
This hex nut adheres to UNF (Unified National Fine) thread standards with a Class 2B thread fit for consistent dimensional accuracy. It features a right-hand thread direction and is manufactured in the inch system with precise measurements: 5/16" width and 7/64" height. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets rigorous environmental and safety standards for industrial use.
