S-92741A212 1/4"-20 Thumb Nuts
Thumb Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Finish & Compliance Parameters
Geometric Parameters
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Key Features & Benefits at a Glance
- Effortless hand-tightening with a knurled round head for superior grip and quick assembly without tools.
- Enhanced stability and load distribution from the integrated flange, reducing the risk of surface damage and loosening.
- Excellent corrosion resistance provided by the zinc-plated brass construction, ensuring long-term reliability in various environments.
- Reliable and precise thread engagement with Class 2B thread fit and coarse UNC 1/4"-20 threads for secure fastening and vibration resistance.
- Durable and fully threaded design for consistent performance and reusability in frequent adjustment applications.
- Compliance with major environmental and safety standards, including RoHS 3 and REACH, for safe use in regulated industries.
- Convenient right-hand threading for standard installation and easy removal, compatible with common UNC threaded components.
Professional Applications & Engineering Value
This 1/4-20 UNC flanged thumb nut is engineered to solve common challenges in assembly and maintenance where tool-free operation and durability are critical. The zinc-plated brass material offers inherent corrosion resistance, making it ideal for applications in electronics, machinery panels, and outdoor equipment that face moisture or harsh conditions. The knurled round head and flange design provide a secure grip and increased bearing surface, preventing loosening from vibrations and reducing wear on connected parts. With its coarse thread and Class 2B thread fit, it ensures quick, reliable fastening in industrial settings, minimizing downtime and enhancing operational efficiency for B2B users in manufacturing and maintenance.
Specification Summary & Compliance
This thumb nut features a 1/4"-20 UNC coarse thread with Class 2B thread fit for standard dimensional accuracy and compatibility. It includes a flange with a collar diameter of 15/32" and a knurled round head for easy handling. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(b)-II and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.
