S-91746A864 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
- Effortless manual tightening and loosening with a knurled round head design that provides superior grip without tools
- Exceptional corrosion resistance and durability thanks to 18-8 Stainless Steel construction, ideal for harsh environments
- High mechanical strength and load-bearing capability with 80,000 psi tensile strength and Rockwell B85 hardness
- Reliable and quick installation ensured by the coarse UNC thread and Class 2A fit for consistent engagement
- Versatile full-threaded design allows for secure fastening at any point along the 1/2" length
- Wide industrial compatibility with standard 8-32 UNC right-hand threads for easy replacement and integration
- Safe for regulated applications as it complies with RoHS 3 and REACH environmental standards
Professional Applications & Engineering Value
This 8-32 UNC Thumb Screw is engineered to solve common industrial challenges where tool-free, repeated adjustments are necessary. The 18-8 Stainless Steel material offers excellent resistance to rust and oxidation, making it suitable for electronics, machinery panels, and outdoor equipment. The knurled round head ensures a firm grip even with gloves or oily hands, reducing installation time and improving operator safety. With a coarse thread and Class 2A fit, it provides reliable performance in vibration-prone applications, preventing loosening while maintaining ease of use. Fully threaded and right-hand designed, it delivers consistent clamping force across various assembly depths, ideal for prototyping, maintenance, and production lines.
Specification Summary & Compliance
This thumb screw features a 1/2" length and 3/16" head diameter with a narrow round-head profile. Thread specifications include 8-32 UNC coarse threads, Class 2A thread fit for standard tolerance, and right-hand direction. It is fully threaded and manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances for safe use in global industrial markets.
