S-90264A445 5/16"-18 x 7/8" 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
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Superior load distribution through full threading design, preventing stress concentration and joint failure
- Quick assembly compatibility with UNC coarse (5/16"-18) threading, reducing installation time in production lines
- Secure torque transmission via external hex drive, enabling reliable tightening with standard wrenches
- Precision thread engagement with Class 2B fit, ensuring consistent performance in high-vibration applications
- Extended connection capability with 7/8" length, accommodating wider gaps between threaded components
- Global compliance assurance meeting RoHS 3 and REACH standards, suitable for regulated manufacturing sectors
Professional Applications & Engineering Value
This zinc-plated steel coupling nut delivers critical performance in industrial fastening systems where corrosion resistance and tensile strength are paramount. The fully threaded UNC coarse profile (5/16"-18) enables rapid alignment and engagement in assembly operations, while the Class 2B thread fit maintains precise tolerances under dynamic loads. Engineered with external hex drive for wrench accessibility, this component solves common challenges in machinery linking, structural framework extensions, and heavy-duty equipment maintenance. The 7/8" length provides sufficient thread engagement for connecting longer rods or bolts, making it ideal for conveyor systems, hydraulic assemblies, and construction applications requiring reliable coupling nut solutions.
Specification Summary & Compliance
Manufactured to UNC coarse thread standards (5/16"-18) with Class 2B thread fit for consistent dimensional accuracy. Features right-hand threading and standard coupling nut profile with 1/2" width across flats. Complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety adherence for global industrial supply chains.
