S-96177A330 3/8"-16 x 1" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Superior Corrosion Resistance: Black-oxide steel finish provides enhanced protection against rust and wear in demanding industrial environments.
• Precise Thread Engagement: Class 2B thread fit ensures smooth, reliable connections with reduced risk of cross-threading or seizing.
• Maximum Load Distribution: Fully threaded design allows for even stress distribution along the entire length, improving joint integrity.
• Industry-Standard Compliance: Manufactured to ASTM A108 specifications, guaranteeing consistent quality and mechanical properties.
• Optimized for High-Strength Applications: Coarse UNC 3/8"-16 threads provide excellent grip and vibration resistance in heavy-duty assemblies.
• Environmental Responsibility: RoHS 3 and REACH compliant, meeting strict regulatory standards for safe use in various industries.
• Versatile Connection Solution: Standard 1" length and 31/64" OD enable flexible use in extending or joining threaded rods and studs.

Professional Applications & Engineering Value

This 3/8"-16 UNC coupling nut is engineered to solve critical challenges in industrial assembly and structural frameworks. The black-oxide steel construction offers a durable, corrosion-resistant surface that withstands harsh conditions, reducing maintenance needs. Its fully threaded and coarse thread design ensures maximum contact area, enhancing load-bearing capacity and preventing loosening under vibration—common in machinery, construction, and automotive applications. The Class 2B thread fit allows for easy installation while maintaining tight tolerances, streamlining production workflows. By adhering to ASTM A108 standards, this nut delivers reliable performance in extending or connecting components, making it ideal for heavy-duty coupling tasks where strength and precision are paramount.

Specification Summary & Compliance

This coupling nut features a 3/8"-16 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy, an OD of 31/64", and a length of 1". It is manufactured in compliance with ASTM A108 specifications and is RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel, as well as REACH (EC 1907/2006) standards, ensuring environmental and safety adherence for industrial use.