S-91510A104 8-32 x 1/4" 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
- Easy hand-tightening operation with wing head design for quick assembly and disassembly without tools
- Enhanced corrosion resistance through zinc-plated steel construction for extended service life in various environments
- Reliable thread engagement with Class 2A fit UNC coarse threads ensuring consistent fastening performance
- Full-length threading provides maximum grip and holding power across the entire screw length
- Standardized dimensions with 8-32 thread size and 1/4" length for compatibility with existing hardware systems
- Right-hand thread direction follows conventional installation practices for intuitive operation
- Environmental compliance meeting RoHS 3 and REACH regulations for safe use in regulated industries
Professional Applications & Engineering Value
This zinc-plated steel thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free access. The wing head design provides superior grip surface for manual operation, eliminating the need for specialized tools in maintenance panels, electronic enclosures, and machinery guards. The 8-32 UNC coarse threading with Class 2A fit ensures rapid installation and reliable holding power in threaded inserts and tapped holes. The zinc plating offers fundamental corrosion protection, making these thumb screws suitable for industrial environments, laboratory equipment, and assembly lines where repeated access is necessary. The combination of full threading and standardized dimensions guarantees consistent performance across production batches.
Specification Summary & Compliance
This thumb screw features 8-32 UNC coarse threads with Class 2A thread fit tolerance, ensuring proper engagement with standard mating components. The product maintains dimensional accuracy with 0.4" head diameter and 1/4" length in inch system measurements. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted substances for industrial and commercial applications.
