S-90264A440 1/4"-28 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
- Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Precise thread engagement with Class 2B fine threading ensuring reliable, vibration-resistant connections
- Full-length threading provides maximum grip strength and uniform load distribution across the entire coupling
- External hex drive design enables easy installation and removal with standard wrench tools
- Right-hand thread direction offers compatibility with standard assembly procedures and equipment
- Regulatory compliance with RoHS 3 and REACH standards ensures environmental responsibility and global market acceptance
- Standard UNF thread profile guarantees interchangeability with existing inch-system components
Professional Applications & Engineering Value
This 1/4"-28 UNF coupling nut delivers exceptional engineering value in applications requiring extended-length fastening solutions. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, machinery, and automotive assemblies where environmental exposure is a concern. The Class 2B fine threading ensures precise fitment in high-vibration environments, preventing loosening in critical connections. As a fully threaded coupling nut with standard external hex drive, it simplifies installation in confined spaces while maintaining maximum tensile strength for joining long threaded rods or creating extended connections in structural frameworks, piping systems, and mechanical linkages.
Specification Summary & Compliance
This coupling nut features 1/4"-28 UNF fine threads with Class 2B thread fit for precise dimensional accuracy according to unified thread standards. The standard profile measures 3/8" width and 7/8" length with fully threaded right-hand configuration. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance and safe usage across industrial applications.
