S-90202A209 5/16"-18 x 3/4" ASTM A582 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional tensile strength and durability meeting ASTM A582 standards for demanding applications
- Precision Class 2B thread fit ensures reliable, vibration-resistant connections in assemblies
- Fully threaded right-hand UNC coarse design provides quick installation and maximum engagement length
- Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance
- Standard 27/64" OD and 3/4" length profile offers compatibility with existing inch-system components
- Heavy-duty coupling capability enables secure extension of threaded rods and studs under load
Professional Applications & Engineering Value
This 5/16"-18 UNC coupling nut delivers critical performance where corrosion resistance and mechanical strength are paramount. Manufactured from 18-8 stainless steel per ASTM A582, it withstands aggressive environments in chemical processing, marine hardware, and outdoor construction. The fully threaded coarse thread profile and Class 2B thread fit prevent cross-threading while maintaining alignment in extended rod assemblies. Its right-hand threading ensures compatibility with standard components, reducing assembly time in structural frameworks, machinery mounting, and piping systems where vibration resistance and long-term reliability are essential.
Specification Summary & Compliance
This coupling nut features 5/16"-18 UNC coarse threads with Class 2B thread fit per ASME B1.1, ensuring dimensional accuracy. The 18-8 stainless steel material conforms to ASTM A582 for chemical composition and mechanical properties. With an OD of 27/64" and length of 3/4", it meets inch-system requirements. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (including 233 SVHCs as of 01/17/2023), validating its suitability for regulated industrial and international markets.
