S-91746A979 1/4"-28 x 1 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and ensuring long-term reliability.
- Excellent manual grip and torque application provided by the knurled round head, allowing for easy hand-tightening and removal without tools.
- High mechanical strength and durability from 80,000 psi tensile strength and Rockwell B83 hardness, resisting deformation under load.
- Precise and reliable fastening with Class 2A UNF fine threads, ensuring a secure fit and vibration resistance in assemblies.
- Full threading along the 1 1/2" length for maximum engagement and adjustability in various material thicknesses.
- Compliance with environmental and safety standards (RoHS 3 and REACH), making it suitable for regulated industries and global supply chains.
- Narrow profile round head design for use in confined spaces while maintaining a professional appearance.
Professional Applications & Engineering Value
This 18-8 stainless steel thumb screw is engineered to solve common industrial challenges, such as frequent adjustments and exposure to corrosive elements. The knurled round head offers exceptional manual control, reducing the need for tools in maintenance-heavy applications like electronic enclosures, machinery panels, and instrumentation. Its UNF fine threading and Class 2A fit provide precise alignment and resistance to loosening under vibration, enhancing assembly integrity. Made from durable stainless steel, it withstands rigorous use while complying with RoHS and REACH standards, ensuring safety and sustainability in sectors from manufacturing to aerospace.
Specification Summary & Compliance
This thumb screw features a 1/4"-28 UNF fine thread with Class 2A dimensional accuracy for consistent performance. It is manufactured to standard inch measurements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for international markets.
