S-91746A656 8-32 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 corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Superior manual grip thanks to the fully knurled head texture, enabling tool-free tightening and adjustments
- Reliable thread engagement with Class 2A UNC coarse threading, ensuring consistent fastening performance
- High mechanical strength offering 80,000 psi tensile strength and Rockwell B85 hardness for durable applications
- Low-profile round head design provides clearance in tight spaces while maintaining easy accessibility
- Full threading along the 1/2" length allows for maximum adjustability and secure holding power
- Compliance with environmental regulations including RoHS 3 and REACH, meeting international standards
Professional Applications & Engineering Value
This low-profile thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free operation. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for electronics, machinery panels, and outdoor equipment where moisture or chemicals are present. The fully knurled head ensures a secure grip even with gloved hands, reducing installation time and eliminating the need for specialized tools. With its UNC coarse thread and Class 2A fit, it offers quick assembly and reliable performance in vibration-prone environments. Engineers specify this component for access panels, calibration devices, and production jigs where rapid maintenance and durability are critical.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threading with Class 2A thread fit for consistent engagement. The fastener is manufactured from 18-8 Stainless Steel with a tensile strength of 80,000 psi and Rockwell B85 hardness. It is fully threaded along its 1/2" length and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in regulated industries.
