S-90200A724 1/2"-13 x 3" 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 manual grip and torque application with a 1" diameter knurled round head, reducing slippage during hand-tightening operations.
- Superior corrosion resistance and durability thanks to the black-oxide steel finish, extending service life in industrial environments.
- High tensile strength of 70,000 psi ensures reliable fastening under heavy loads and vibration, minimizing failure risks.
- Easy and quick installation with coarse UNC threading and Class 2A fit, providing smooth engagement and reduced assembly time.
- Full 3" threading allows for maximum adjustability and secure holding across various material thicknesses.
- Consistent performance and material integrity backed by Rockwell B84 hardness, resisting wear and deformation.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global sourcing standards.
Professional Applications & Engineering Value
This black-oxide steel thumb screw is engineered to address common industrial challenges, such as the need for rapid, tool-free adjustments in machinery, enclosures, and fixtures. The knurled round head offers exceptional manual control, ideal for applications where frequent access is required, like in electrical panels, prototyping, and maintenance setups. Its coarse UNC threading and Class 2A fit ensure quick, secure fastening without specialized tools, reducing downtime. The low-profile design and fully threaded 3" length provide versatility for varying depths, while the high tensile strength and hardness resist loosening under stress, making it a dependable choice for industrial thumb screws in demanding environments.
Specification Summary & Compliance
This thumb screw adheres to precise dimensional standards, including 1/2"-13 UNC coarse threads with a Class 2A fit for consistent thread engagement and tolerance. It meets manufacturing specifications for right-hand threading and full-length threading. Compliance is confirmed with RoHS 3 (2015/863/EU), including exemption 6(a)-I for lead in steel, and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are upheld for industrial use.
