S-90210A112 1/4"-20 x 2" Thumb Screws
Thumb Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Effortless manual operation with a 1" diameter knurled thumb head for superior grip without tools
- Enhanced durability and corrosion resistance thanks to the black-oxide steel finish
- Secure and reliable fastening with a high 70,000 psi tensile strength for demanding industrial applications
- Precise and easy alignment provided by the removable swivel tip with up to 10° maximum angle
- Quick installation and broad compatibility ensured by the fully threaded 1/4"-20 UNC coarse thread with Class 2A fit
- Low-profile, space-saving design ideal for applications with limited clearance
- Compliance with environmental standards as it is RoHS 3 compliant, meeting industry regulatory requirements
Professional Applications & Engineering Value
This black-oxide steel thumb screw is engineered to address common industrial fastening challenges, such as the need for rapid assembly and disassembly without specialized tools. The knurled head ensures a firm grip, reducing slippage and improving operator efficiency in environments like machinery panels, electronic enclosures, and prototyping setups. Its UNC coarse thread and Class 2A fit provide reliable engagement in various materials, while the removable swivel tip minimizes surface damage and allows for angular adjustments up to 10°, making it ideal for applications requiring precise alignment and repeated access. Built from robust black-oxide steel, it offers excellent resistance to wear and mild corrosion, ensuring long-term performance in workshops, manufacturing, and maintenance operations.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and ease of use. It is fully manufactured to meet RoHS 3 (2015/863/EU) compliance with exemption 6(a)-I, ensuring it is free of hazardous substances except for lead as an alloying element in steel. The specifications include a 1/4"-20 thread size with coarse spacing, 2" length, and a low-profile round head, providing reliable fastening in line with industrial requirements for manual operation and durability.
