S-90165A414 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 hand-tightening with a large four-arm thumb head (1 1/8" width) for quick assembly and disassembly without tools.
- Superior corrosion resistance and durability from the black-oxide steel finish, extending service life in demanding environments.
- Exceptional mechanical strength with a tensile strength of 180,000 psi and Rockwell C40 hardness to withstand high-stress applications.
- Secure and versatile fastening provided by the removable swivel tip, which accommodates a 10° maximum angle to prevent marring on contacted surfaces.
- Reliable and coarse thread engagement with a fully threaded 1/4"-20 UNC Class 2A thread for rapid installation and robust holding power.
- Compliance with international environmental standards, including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This black-oxide steel thumb screw is engineered to solve common industrial fastening challenges where tool-less operation and surface protection are critical. The four-arm head design offers excellent grip for manual adjustments in tight spaces, commonly used in machinery access panels, electronic enclosures, and fixture clamping. The removable swivel tip with a 10° maximum pivot angle distributes pressure evenly, preventing damage to delicate components or finished surfaces. Made from high-strength steel with a Rockwell C40 hardness and 180,000 psi tensile strength, it ensures long-term reliability in vibration-prone or heavy-duty settings. The fully threaded UNC coarse thread and Class 2A fit provide consistent performance, making it a versatile choice for maintenance, manufacturing, and assembly lines requiring frequent access.
Specification Summary & Compliance
This thumb screw features a 1/4"-20 UNC coarse thread with a Class 2A thread fit for standard dimensional accuracy and easy engagement. It is manufactured from black-oxide steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.
