S-90268A205 4-40 x 7/16" Coupling Nuts
Coupling 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 18-8 stainless steel construction, ideal for harsh industrial environments and extending service life.
- Enhanced torque transmission via the external hex drive design, allowing for secure tightening with standard tools and reducing installation time.
- Maximum connection integrity from the fully threaded profile, ensuring uniform load distribution and preventing joint failure under stress.
- Reliable thread engagement with Class 2B thread fit and coarse UNC threading, facilitating quick assembly and minimizing cross-threading risks.
- Broad compatibility with 4-40 UNC components, making it versatile for various coupling applications in machinery and equipment.
- Environmental compliance assurance meeting RoHS 3 and REACH standards, ensuring safe use in regulated industries without hazardous substances.
- Optimized dimensions (5/16" width and 7/16" length) for easy handling and space-efficient designs in tight assembly areas.
Professional Applications & Engineering Value
This 4-40 UNC coupling nut in 18-8 stainless steel addresses common engineering challenges like corrosion-induced failures and weak connections in dynamic systems. The fully threaded and external hex drive design ensures robust torque application and uniform stress distribution, critical for industrial coupling in automotive, aerospace, and machinery assemblies. Its coarse thread and Class 2B fit enable rapid installation while maintaining precision, reducing downtime in production lines. By combining durability with compliance to RoHS and REACH, it offers a reliable solution for applications demanding long-term performance and regulatory adherence, such as electrical enclosures or structural frameworks.
Specification Summary & Compliance
This coupling nut features a 4-40 UNC thread size with Class 2B thread fit for precise dimensional accuracy, adhering to standard inch measurements. It is manufactured from 18-8 stainless steel with a standard profile and right-hand threading, ensuring compatibility with common industrial components. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious applications without restricted substances.
