S-90268A102 9/16"-18 x 2 1/8" 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise thread engagement with Class 2B fine UNF threading ensuring reliable, vibration-resistant connections
- Maximum load distribution through full-length threading for enhanced structural integrity in demanding applications
- Easy installation and removal with standard external hex drive design compatible with common tools
- Long-term reliability with right-hand threading that maintains consistent performance under stress
- Environmental compliance meeting RoHS 3 and REACH standards for safe usage across regulated industries
- Versatile connectivity with 2 1/8" length accommodating various rod and stud configurations
Professional Applications & Engineering Value
This 9/16"-18 UNF coupling nut delivers exceptional engineering value in applications requiring extended-thread engagement and corrosion protection. The 18-8 stainless steel construction provides inherent resistance to rust and chemical degradation, making it suitable for plumbing systems, marine equipment, and food processing machinery where moisture exposure is constant. The Class 2B thread fit with UNF fine threading ensures precise alignment and secure fastening between threaded rods or studs, preventing loosening under vibration - a critical consideration in automotive assembly, industrial machinery, and structural frameworks. The fully threaded design maximizes contact surface area, distributing tensile loads evenly across the entire connection point for enhanced durability in heavy-duty applications.
Specification Summary & Compliance
This coupling nut features 9/16"-18 UNF fine threading with Class 2B thread fit per unified thread standards, ensuring precise dimensional accuracy and interchangeability. Manufactured from 18-8 stainless steel with standard external hex drive (13/16" width) and fully threaded 2 1/8" length profile. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for hazardous substance restrictions.
