S-91746A222 8-32 x 1/2" 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 knurled round head design for tool-free operation in tight spaces
- Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- Reliable thread engagement with fully threaded UNC coarse threads ensuring maximum holding power
- Consistent performance under load with 80,000 psi tensile strength and Rockwell B85 hardness
- Precise fit and interchangeability guaranteed by Class 2A thread fit meeting industry standards
- Low-profile installation with round-head design minimizing protrusion in compact assemblies
- Environmental compliance assurance with RoHS 3 and REACH regulations for global supply chain compatibility
Professional Applications & Engineering Value
Engineered for industrial applications requiring frequent adjustments, this 8-32 UNC thumb screw solves common assembly challenges. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, extending service life in demanding conditions like electronics enclosures, machinery panels, and laboratory equipment. Its knurled head offers secure hand-tightening without tools, reducing installation time while the coarse thread and fully threaded design ensure rapid engagement and robust clamping force. With a low-profile round head, it fits seamlessly into space-constrained designs, making it ideal for prototypes, maintenance access points, and reusable fixtures where durability and ease of use are critical.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with Class 2A thread fit for precise dimensional accuracy and reliable performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for regulated industries. The specifications include a thread size of 8-32, length of 1/2", and right-hand thread direction, manufactured to deliver consistent quality for B2B procurement needs.
