S-90202A212 5/16"-18 x 1" ASTM A582 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional tensile strength and durability under heavy loads, meeting ASTM A582 specifications
• Precise Class 2B thread fit ensures smooth assembly and reliable connections in demanding applications
• Coarse UNC threading provides faster installation and reduced risk of cross-threading
• Full threading design allows maximum engagement and uniform stress distribution
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory adherence
• Right-hand thread direction offers standard, intuitive installation for common industrial uses

Professional Applications & Engineering Value

This 5/16"-18 UNC coupling nut is engineered to solve critical challenges in industrial assembly, where corrosion resistance and mechanical strength are paramount. Constructed from 18-8 stainless steel and fully compliant with ASTM A582, it withstands aggressive chemicals, moisture, and high-stress conditions without compromising integrity. The fully threaded, coarse UNC thread design ensures rapid, secure fastening in applications like machinery linking, structural frameworks, and fluid systems, reducing downtime and maintenance costs. Its Class 2B thread fit guarantees precise alignment, minimizing wear and preventing loosening in vibrating environments, making it a reliable choice for heavy-duty coupling nuts in manufacturing, construction, and automotive sectors.

Specification Summary & Compliance

This coupling nut adheres to UNC coarse thread standards with a 5/16"-18 thread size and Class 2B thread fit for consistent dimensional accuracy. It meets ASTM A582 manufacturing specifications, ensuring high-quality performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.