S-90268A345 1/2"-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 service life in harsh environments
- Precise thread engagement with Class 2B thread fit ensuring reliable, vibration-resistant connections
- Easy installation and removal through external hex drive design compatible with standard tools
- Enhanced load distribution with fully threaded, fine UNF pattern for maximum joint integrity
- Versatile coupling capability with standard profile accommodating various rod and bolt connections
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use
- Optimized dimensions (5/8" width × 1-1/4" length) providing balanced strength-to-weight ratio
Professional Applications & Engineering Value
Engineered for demanding mechanical assemblies, this 1/2"-20 UNF coupling nut solves critical connection challenges in industrial equipment, precision machinery, and structural frameworks. The 18-8 stainless steel material delivers exceptional corrosion resistance while maintaining structural integrity under continuous stress. Its fine UNF threading and Class 2B thread fit create secure, vibration-resistant joints that prevent loosening in dynamic applications. The external hex drive enables quick installation with common tools, reducing assembly time in production environments and maintenance operations. This coupling nut effectively bridges threaded components while withstanding thermal cycling and mechanical loads.
Specification Summary & Compliance
Manufactured to UNF thread standards with Class 2B thread fit precision for consistent mating compatibility. The fully threaded design maintains uniform load distribution across the entire 1-1/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency. The standard coupling nut profile and right-hand threading adhere to industrial fastener specifications for reliable performance in inch-system applications.
