S-90202A204 1/4"-28 x 3/4" ASTM A582 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life
• Precise thread engagement with Class 2B fine thread fit ensuring reliable, vibration-resistant connections
• Full threading design provides maximum grip and load distribution across the entire nut length
• ASTM A582 compliance guarantees material quality and mechanical performance for industrial applications
• Environmental regulation compliance with RoHS 3 and REACH, ensuring safe use in regulated industries
• Right-hand UNF fine threading (1/4"-28) offers excellent sealing and tension control in precision assemblies
• Standard profile design enables easy installation and compatibility with standard tools and components

Professional Applications & Engineering Value

This 1/4"-28 UNF coupling nut in 18-8 stainless steel addresses critical needs in precision mechanical assemblies where corrosion resistance and thread reliability are paramount. The fully threaded design and Class 2B fine thread fit ensure uniform stress distribution and excellent vibration resistance, preventing loosening in dynamic applications. Manufactured to ASTM A582 specifications, it delivers consistent mechanical properties for demanding environments including machinery, automotive, and aerospace systems. The fine UNF threading provides superior sealing capabilities in hydraulic and pneumatic systems, while the stainless steel construction maintains integrity in corrosive industrial settings, reducing maintenance frequency and replacement costs.

Specification Summary & Compliance

This coupling nut features 1/4"-28 UNF right-hand fine threading with Class 2B thread fit per Unified Thread Standard, ensuring precise dimensional accuracy. The 23/64" OD and 3/4" length provide optimal strength-to-weight ratio. Manufactured in compliance with ASTM A582 material specifications, it meets rigorous industrial standards. The product is RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (including 233 SVHCs as of 01/17/2023), ensuring environmental responsibility and regulatory adherence for global industrial applications.