S-90268A340 7/16"-20 x 1 1/4" Coupling Nuts
Coupling Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction for long-term reliability in harsh environments
- Precise thread engagement with Class 2B fit ensuring secure, vibration-resistant connections
- Enhanced load distribution through full threading across the entire 1-1/4" length
- Easy installation and removal with standard external hex drive design
- Fine thread accuracy with 7/16"-20 UNF specification for improved tension control
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for industrial safety
- Versatile coupling capability with right-hand threading for standard assembly applications
Professional Applications & Engineering Value
This 18-8 stainless steel coupling nut delivers exceptional performance in demanding industrial environments where corrosion resistance and thread reliability are critical. The fully threaded design and Class 2B thread fit provide superior load distribution across the entire 1-1/4" length, preventing stress concentration points that can lead to fastener failure. The 7/16"-20 UNF fine threading offers enhanced vibration resistance compared to coarse threads, making it ideal for precision equipment, machinery assemblies, and structural applications requiring stable, long-lasting connections. The external hex drive facilitates easy installation with standard tools, while the right-hand thread direction ensures compatibility with conventional assembly processes.
Specification Summary & Compliance
This coupling nut features 7/16"-20 UNF fine threading with Class 2B thread fit per UNF standards, ensuring precise dimensional accuracy and proper mating with corresponding male threads. Manufactured from 18-8 stainless steel with standard coupling nut profile, it measures 1-1/4" in length with 9/16" width across flats. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest industrial safety and environmental standards for hazardous substance restrictions.
