S-91746A704 10-32 x 1/2" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced grip and torque application with knurled head texture for secure manual tightening without tools
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
- High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable, repeated use
- Precision thread engagement with Class 2A UNF fine threads ensuring secure fastening and vibration resistance
- Low-profile design allows installation in tight spaces while maintaining easy manual access
- Full threading provides maximum thread engagement and consistent clamping force along the entire length
- Environmental compliance meets RoHS 3 and REACH standards for use in regulated industries
Professional Applications & Engineering Value
This 10-32 low profile knurled thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-less maintenance. The 18-8 stainless steel construction provides excellent corrosion resistance for electronics enclosures, machinery guards, and laboratory equipment exposed to moisture or chemicals. The fine UNF threads and Class 2A fit ensure precise engagement in threaded inserts and tapped holes, preventing cross-threading while maintaining alignment accuracy. The knurled head texture offers superior grip even with oily hands or when wearing gloves, reducing installation time and eliminating the need for specialized tools. These fully threaded fasteners are particularly valuable in assembly lines, optical equipment, and access panels where quick disassembly is required without compromising fastener integrity.
Specification Summary & Compliance
This thumb screw features precision 10-32 UNF fine threads with Class 2A tolerance for consistent fit and reliable performance. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and regulatory acceptance across global markets. Manufacturing specifications include a 7/16" head diameter with low-profile round head design, 1/2" length, and right-hand thread direction for standard installation procedures.
