S-93350A553 5/16"-18 x 1 1/8" 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 zinc-flake coating, extending service life in harsh industrial environments.
- Exceptional tensile strength from steel construction, ensuring reliable performance under heavy loads.
- Easy and quick installation with a standard external hex profile (1/2" width) for common wrench access.
- Secure thread engagement due to Class 2B thread fit, minimizing the risk of cross-threading and loosening.
- Versatile connectivity with fully threaded, right-hand UNC coarse (5/16"-18) design for joining threaded rods or studs.
- Compliance with environmental regulations (RoHS 3 and REACH), making it suitable for global supply chains.
- Durable long-term performance with a 1-1/8" length providing ample thread contact for stable connections.
Professional Applications & Engineering Value
This zinc-flake-coated steel coupling nut is engineered to address common industrial challenges such as corrosion-induced failure and vibration loosening. The UNC coarse threading (5/16"-18) and Class 2B thread fit ensure precise, reliable engagement in applications like machinery assembly, construction frameworks, and automotive systems. Its fully threaded design and external hex drive allow for easy adjustment and strong torque application, reducing installation time and maintenance needs. Ideal for heavy-duty fastening in environments demanding durability and compliance, this nut provides a robust solution for extending or connecting threaded components securely.
Specification Summary & Compliance
This coupling nut adheres to UNC coarse thread standards (5/16"-18) with a Class 2B thread fit for consistent dimensional accuracy. Manufactured from zinc-flake-coated steel, it meets industry specifications for strength and corrosion resistance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for various industrial and engineering applications.
