S-96177A260 5/16"-18 x 1 1/2" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with black-oxide steel finish, extending service life in harsh industrial environments
• Precise thread engagement with Class 2B thread fit ensuring reliable, vibration-resistant connections
• Full-length threading provides maximum engagement surface for stronger, more stable assemblies
• Heavy-duty construction meets ASTM A108 specifications for consistent mechanical performance
• Coarse UNC threading enables faster installation and reduced cross-threading risks
• Environmental compliance with RoHS 3 and REACH standards for responsible manufacturing
• Standard right-hand threading ensures compatibility with common industrial components

Professional Applications & Engineering Value

This 5/16"-18 UNC coupling nut delivers exceptional engineering value in demanding applications where threaded rod connections require both strength and corrosion resistance. The black-oxide steel construction provides superior protection against rust and oxidation, making it ideal for industrial assembly, machinery frameworks, and structural applications exposed to environmental elements. The fully threaded design with coarse UNC spacing ensures maximum thread contact area, distributing load evenly across the connection while allowing for quick installation and adjustment. Engineered to ASTM A108 standards, this coupling nut maintains dimensional stability under heavy loads, preventing connection failures in vibration-prone environments. The Class 2B thread fit guarantees precise mating with standard threaded components, reducing the risk of stripping or cross-threading during assembly operations.

Specification Summary & Compliance

This coupling nut features 5/16"-18 UNC coarse threading with Class 2B thread fit tolerance for precise component mating. Manufactured from black-oxide steel to ASTM A108 specifications, it measures 1 1/2" in length with 27/64" outer diameter. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and meets REACH (EC 1907/2006) requirements for hazardous substances, ensuring environmental responsibility in industrial applications.