S-90977A230 1"-14 x 2 3/4" 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
- Enhanced load distribution with full 1"-14 fine threading for secure, vibration-resistant connections in heavy-duty assemblies
- Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
- High-strength performance meeting Grade 5 standards, ensuring reliable operation under substantial mechanical stress
- Precise thread engagement with Class 2B fit for smooth installation and reduced risk of cross-threading
- Easy installation and removal using standard tools thanks to the external hex drive design
- Extended connection capability with 2-3/4" fully threaded length for joining long rods or studs
- Regulatory compliance assurance with RoHS 3 and REACH standards for safe use in global industrial markets
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel coupling nut delivers exceptional engineering value in applications requiring extended-length fastening solutions. The 1"-14 fine thread (UNS) configuration provides increased tensile strength and superior resistance to vibrational loosening compared to coarse threads, making it ideal for heavy machinery, structural frameworks, and precision equipment assemblies. The fully threaded design allows for adjustable positioning along the entire 2-3/4" length, while the external hex drive enables high-torque installation with common tools. The zinc plating creates a sacrificial layer that significantly delays rust formation in humid or corrosive environments, addressing common failure points in industrial fastening systems.
Specification Summary & Compliance
This coupling nut features 1"-14 UNS fine threads with Class 2B thread fit for consistent dimensional accuracy and reliable engagement. Manufactured from zinc-plated steel to Grade 5 strength standards, it measures 1-3/8" across flats and 2-3/4" in length. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance for industrial applications worldwide.
