S-96177A440 1/2"-13 x 1 1/4" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance from the black-oxide steel finish, extending service life in demanding industrial environments.
• Superior load-bearing capability due to the ASTM A108 steel material, ensuring reliable performance under high-stress conditions.
• Quick and secure assembly with fully threaded UNC coarse spacing, allowing for faster installation and disassembly.
• Precise thread engagement guaranteed by the Class 2B thread fit, minimizing the risk of cross-threading and improving joint integrity.
• Broad compatibility with standard 1/2"-13 male threads, making it a versatile component for various coupling applications.
• Environmental and regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global markets.
• Robust dimensional stability with a 1 1/4" length and 37/64" OD, providing consistent performance in repetitive assembly tasks.

Professional Applications & Engineering Value

This black-oxide steel coupling nut is engineered to address common challenges in industrial assembly, such as vibration-induced loosening and corrosion in harsh conditions. The fully threaded UNC coarse design ensures maximum thread contact, distributing stress evenly to prevent fatigue failures in extended shaft connections or rod assemblies. Made from ASTM A108 compliant steel, it offers high tensile strength for heavy-duty applications in machinery, construction, and automotive sectors. The black-oxide surface treatment provides a protective layer against rust, reducing maintenance needs and downtime. Ideal for use in right-hand threaded systems, this nut simplifies inventory management by adhering to widely accepted standards, enhancing efficiency in B2B procurement and engineering projects.

Specification Summary & Compliance

This coupling nut meets precise dimensional tolerances, including a Class 2B thread fit for consistent engagement and UNC coarse threading (1/2"-13) per standard specifications. It conforms to ASTM A108 for material integrity and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, supporting sustainable and safe industrial practices. The product features a right-hand thread direction and is fully threaded to ensure uniform load distribution.