S-96177A340 3/8"-24 x 1" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from the black-oxide steel finish, extending service life in harsh industrial environments.
• Precise and reliable connections ensured by the Class 2B fine thread fit, minimizing the risk of cross-threading and loosening.
• High-strength performance backed by ASTM A108 material standards, suitable for demanding mechanical applications.
• Full-threaded design provides maximum engagement and load distribution along the entire length for enhanced joint integrity.
• Right-hand threading offers standard, intuitive installation compatible with common assembly practices.
• Regulatory compliance with RoHS 3 and REACH, ensuring environmental safety and unrestricted use in regulated markets.
• Versatile coupling capability with a 1" length and standard profile, ideal for joining threaded rods or studs in various configurations.

Professional Applications & Engineering Value

This 3/8"-24 UNF coupling nut is engineered to address critical challenges in assembly and structural linking applications. The black-oxide steel construction provides a durable barrier against oxidation and wear, making it suitable for automotive, machinery, and construction sectors where exposure to moisture and stress is common. The fully threaded and fine UNF thread design ensures a tight, secure fit that resists vibration-induced loosening, a common failure point in dynamic systems. By meeting ASTM A108 specifications, it guarantees consistent mechanical properties and dimensional accuracy, reducing installation errors and maintenance needs. Its right-hand thread direction and Class 2B thread fit facilitate quick, tool-compatible installation, streamlining production workflows and enhancing operational efficiency in B2B procurement scenarios.

Specification Summary & Compliance

This coupling nut features a 3/8"-24 UNF thread size with fine thread spacing and a Class 2B thread fit per unified inch standards, ensuring precise dimensional tolerances for reliable performance. It complies with ASTM A108 for material and manufacturing consistency, and is verified as RoHS 3 (2015/863/EU) compliant with exemption 6(a) and REACH (EC 1907/2006) compliant as of 01/17/2023, affirming its adherence to environmental and safety regulations without lead restrictions as an alloying element in steel.