S-90268A435 9/16"-18 x 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Secure, vibration-resistant connections due to UNF fine threading and Class 2B thread fit for precise engagement
- Extended reach and versatility provided by the extra long 4" profile and partially threaded design
- High torque capability enabled by the external hex drive style and robust 7/8" width
- Long-term reliability with compliance to RoHS 3 and REACH environmental standards
- Broad compatibility with 9/16"-18 UNF threaded components, ensuring easy integration
- Reduced assembly time through standardized inch measurements and right-hand thread direction
Professional Applications & Engineering Value
This heavy-duty coupling nut is engineered to solve critical fastening challenges in demanding applications. The 18-8 stainless steel material offers superior corrosion resistance, making it suitable for marine, chemical processing, and outdoor machinery where moisture and chemicals are present. Its extra long 4" length and partially threaded design allow for connecting widely spaced or misaligned rods and studs, common in structural frameworks, hydraulic systems, and conveyor assemblies. The UNF fine thread and Class 2B thread fit ensure a tight, secure joint that minimizes loosening under vibration, enhancing safety and reducing maintenance needs in industrial equipment. This nut delivers reliable performance in B2B procurement scenarios, providing a durable, compliant solution for OEMs and MRO operations.
Specification Summary & Compliance
This coupling nut adheres to UNF thread standards with a Class 2B thread fit for consistent dimensional accuracy. It features a 9/16"-18 thread size, right-hand thread direction, and a minimum thread length of 3/4". Manufactured from 18-8 stainless steel with an external hex drive, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial fastener applications.
