S-90910A683 2-56 x 5/16" ASME B18.3 Stainless Steel Button Head Torx Plus Screws
Stainless Steel Button Head Torx Plus 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh environments.
- Enhanced torque transmission and reduced cam-out with the Torx Plus IP6/T6 drive, ensuring secure fastening and tool longevity.
- Reliable tensile strength of 60,000 psi and Rockwell B55 hardness for durable performance under load.
- Optimized thread engagement and holding power with fully threaded UNC coarse threads and Class 2A fit for quick assembly.
- Low-profile rounded button head design provides a smooth finish and reduces snagging in compact spaces.
- Broad industrial compliance with ASME B18.3 standards, RoHS 3, and REACH for safe, regulated use.
- Right-hand coarse threading ensures easy installation and removal in standard applications.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 2-56 UNC Rounded Head Torx Plus Screws address common challenges like corrosion, vibration loosening, and assembly efficiency. The 18-8 stainless steel material combined with a passivated finish offers exceptional resistance to rust and chemicals, making them suitable for electronics, machinery, and outdoor equipment. The Torx Plus drive (IP6/T6) minimizes slippage, allowing higher torque application without damaging the drive, which is critical in automated or high-volume production lines. With a fully threaded coarse design and Class 2A thread fit, these screws ensure rapid, secure fastening in metals and plastics, reducing installation time and improving overall structural integrity in industrial screw applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards with a size of 2-56. Manufacturing conforms to ASME B18.3 specifications, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and regulated industrial use.
