S-90268A437 9/16"-18 x 6" 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-lasting performance in harsh industrial environments
- Enhanced load distribution from the extra long 6" profile, reducing stress concentration on connected components
- Precise thread engagement with Class 2B thread fit ensuring reliable connections in critical applications
- Optimized installation efficiency through partial threading design that reduces friction during assembly
- Secure torque transmission via external hex drive style for reliable tightening with standard tools
- Fine thread accuracy with 9/16"-18 UNF specification providing superior vibration resistance
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This heavy-duty coupling nut addresses critical engineering challenges in industrial assembly where extended reach and corrosion resistance are paramount. The 18-8 stainless steel construction provides exceptional durability against chemical exposure and environmental factors, while the extra long 6" profile enables connections between widely spaced components in structural frameworks, machinery, and piping systems. The partially threaded design reduces galling during installation, particularly beneficial in high-volume assembly operations. With UNF fine threading and Class 2B thread fit, this coupling nut maintains secure connections in vibration-prone applications, making it ideal for automotive, manufacturing, and construction equipment where reliability cannot be compromised.
Specification Summary & Compliance
This coupling nut features 9/16"-18 UNF fine threading with Class 2B thread fit precision, ensuring consistent engagement across mating components. The partial threading extends to a minimum of 3/4" with overall dimensions of 6" length and 7/8" width across flats. Manufactured to UNF standards with external hex drive configuration, this fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial fasteners.
