S-90104A103 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 316 Stainless Steel construction, ideal for harsh environments and extended service life.
- Easy and secure installation provided by the external hex drive, allowing for high torque application with standard tools.
- Reliable and precise connections ensured by the Class 2B thread fit, minimizing the risk of cross-threading and loosening.
- Broad compatibility with coarse UNC threads, facilitating quick assembly and disassembly in various industrial applications.
- Full threading for maximum engagement, offering consistent strength and stability along the entire length of the nut.
- Confident global sourcing with compliance to RoHS 3 and REACH environmental standards, meeting stringent regulatory requirements.
- Standard inch dimensions (5/16" width, 7/16" length) for seamless integration into existing designs and replacement parts.
Professional Applications & Engineering Value
This 4-40 UNC coupling nut in 316 Stainless Steel is engineered to solve critical challenges in industrial assembly, such as connecting threaded rods or studs in corrosive or high-moisture settings. Its external hex drive enables efficient torque transfer, reducing installation time and preventing tool slippage. The fully threaded design and coarse thread spacing ensure deep engagement and vibration resistance, making it a dependable choice for machinery, marine equipment, and chemical processing applications where durability and precision are paramount. By leveraging its Class 2B thread fit, engineers can achieve leak-proof and secure joints, minimizing maintenance downtime and enhancing overall system integrity.
Specification Summary & Compliance
This coupling nut adheres to UNC coarse thread standards with a Class 2B thread fit for consistent dimensional accuracy. It is manufactured to standard inch system specifications, featuring a 4-40 thread size, 5/16" width, and 7/16" length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.
