S-90866A165 1/2"-20 Thumb Nuts
Thumb Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Geometric Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
- Effortless hand-tightening capability with 2" wide wings and standard wing nut profile for tool-free assembly
- Precision thread engagement with Class 2B UNF fine threads ensuring reliable, vibration-resistant connections
- Optimized load distribution from 15/16" base diameter providing stable mounting surface
- Quick installation efficiency with right-hand thread direction following industry-standard assembly practices
- Environmental compliance assurance meeting RoHS 3 and REACH standards for responsible manufacturing
- Dimensional consistency in inch system measurements ensuring compatibility with existing equipment
Professional Applications & Engineering Value
This zinc-plated steel thumb nut delivers exceptional value in applications requiring frequent adjustments or maintenance access where tools are impractical. The UNF fine thread configuration provides superior resistance to vibrational loosening compared to coarse threads, making it ideal for machinery, electrical enclosures, and production equipment. The 2" wing span offers substantial torque advantage for hand-tightening while the 15/16" base diameter ensures stable seating on mounting surfaces. Engineered for industrial environments, the zinc plating creates a protective barrier against moisture and corrosion, significantly extending component lifespan in manufacturing facilities, outdoor equipment, and assembly lines where quick disassembly is regularly required.
Specification Summary & Compliance
This thumb nut features 1/2"-20 UNF fine threads with Class 2B thread fit per Unified National Fine standards, ensuring precise engagement and reliable performance. Manufactured to standard wing nut profile specifications in inch measurements. The component is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substance restrictions.
