S-96177A410 3/8"-24 x 1 1/2" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: The black-oxide steel finish provides a durable protective layer, extending the nut's service life in various industrial environments.
• Superior Thread Engagement: Fully threaded design and Class 2B thread fit ensure consistent, reliable connections with minimal risk of cross-threading.
• Precision Fit for High-Stress Applications: 3/8"-24 UNF fine threading offers a larger number of threads per inch, creating a stronger, more vibration-resistant joint.
• Guaranteed Material Integrity: Manufactured from ASTM A108 steel, this nut meets strict standards for material composition and mechanical properties.
• Broad Industry Compatibility: The right-hand thread and standard profile make it a versatile component for a wide range of assembly and repair tasks.
• Uninterrupted Supply Chain Compliance: Adherence to RoHS 3 and REACH regulations ensures the product can be used in regulated markets without restriction.
• Optimal Strength-to-Size Ratio: With an OD of 31/64" and a length of 1 1/2", it provides a robust connection point without adding unnecessary bulk to the assembly.

Professional Applications & Engineering Value

This 3/8"-24 UNF coupling nut is engineered to solve critical challenges in industrial assembly and machinery repair. The black-oxide steel construction combats rust and corrosion, a common failure point in humid or demanding environments, thereby reducing maintenance frequency and downtime. Its fully threaded body and fine UNF thread form provide maximum thread contact area, which is essential for maintaining joint integrity under high vibrational loads and dynamic stresses. This design is particularly valuable in applications like connecting long threaded rods, extending shaft lengths, or joining components in automotive, aerospace, and heavy equipment where a reliable, Class 2B fit is non-negotiable for safety and performance. By specifying this ASTM A108 certified nut, engineers and procurement managers secure a component that delivers predictable, long-term performance.

Specification Summary & Compliance

This coupling nut adheres to precise dimensional standards, including a Class 2B thread fit for consistent assembly. It is manufactured in accordance with the ASTM A108 specification, governing its material quality. The product is RoHS 3 (2015/863/EU) compliant under exemption 6(a) for lead in steel and is fully REACH (EC 1907/2006) compliant as of the latest Substance of Very High Concern (SVHC) list, ensuring regulatory acceptance for industrial use.