S-90282A221 3/8"-16 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
- Enhanced manual operation with a large 1 1/4" diameter knurled head for superior grip and torque application without tools.
- Exceptional durability and corrosion resistance provided by the black-oxide steel finish, extending service life in demanding environments.
- High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable performance under heavy loads.
- Secure and precise fastening due to the permanent swivel tip, which accommodates a 7.5° maximum angle to prevent binding and ensure proper alignment.
- Wide compatibility and easy installation with a coarse 3/8"-16 UNC thread and Class 2A fit, suitable for various industrial assemblies.
- Low-profile round head design minimizes protrusion, making it ideal for applications with limited clearance.
- Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe and sustainable use.
Professional Applications & Engineering Value
This heavy-duty thumb screw is engineered to address common challenges in industrial assembly and maintenance, such as the need for quick, tool-free adjustments and secure fastening under vibration. The black-oxide steel construction offers excellent resistance to rust and wear, while the fully threaded design and UNC coarse thread ensure rapid installation and high holding power in materials like metal and plastic. The integrated permanent swivel tip with a 7.5° maximum angle compensates for minor misalignments, reducing stress on components and preventing thread damage. Ideal for machinery, electronic enclosures, and fixtures, this screw provides reliable, repeatable performance in industrial applications where strength and ease of use are critical.
Specification Summary & Compliance
This product adheres to Class 2A thread fit tolerances for consistent engagement and is manufactured according to UNC thread standards. It is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006), ensuring it meets stringent environmental and safety regulations for industrial use.
