S-97008A622 1/4"-20 x 2" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced grip and torque application with the spade head thumb design for easy manual tightening without tools
- Superior corrosion resistance due to zinc-plated steel construction, extending service life in various environments
- High mechanical strength with 40,000 psi tensile strength and Rockwell B55 hardness for reliable performance under stress
- Quick and secure fastening enabled by the fully threaded UNC coarse pattern and Class 2A thread fit for efficient assembly
- Increased stability and load distribution from the integrated flange, reducing the risk of loosening in dynamic applications
- Wide industrial compatibility with right-hand coarse threads meeting common UNC standards for versatile use
- Environmental and safety compliance with RoHS 3 regulations, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This zinc-plated steel thumb screw is engineered to address common industrial challenges such as frequent adjustments and exposure to harsh conditions. The flanged spade head provides excellent manual control, ideal for applications requiring quick assembly and disassembly without specialized tools, like in machinery panels, electronic enclosures, and automotive components. The coarse UNC thread and Class 2A fit ensure precise engagement and resistance to vibration, while the zinc plating offers added durability against corrosion. With a tensile strength of 40,000 psi and full threading, it delivers consistent performance in heavy-duty thumb screw applications, reducing maintenance downtime and enhancing operational efficiency in industrial settings.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for reliable dimensional accuracy. Key specifications include a 1/4"-20 thread size, coarse threading, right-hand direction, and full threading along the 2" length. It complies with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances, and meets general industrial requirements for strength and durability.
