S-90910A529 1/4"-20 x 3/4" ASME B18.3, ASTM F835 Steel Button Head Torx Plus Screws
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 with zinc-plated alloy steel construction, ideal for harsh industrial environments.
- Enhanced torque transmission and reduced cam-out using Torx Plus T27 drive for reliable, high-torque fastening.
- Exceptional tensile strength of 120,000 psi ensures secure, long-lasting connections under heavy loads.
- Precise Class 3A thread fit provides tighter tolerances for improved assembly accuracy and vibration resistance.
- Fully threaded 1/4"-20 UNC coarse thread design allows for faster installation and maximum grip in various materials.
- Low-profile rounded button head offers a smooth finish and reduced risk of snagging in compact spaces.
- Compliance with ASME B18.3, RoHS 3, and REACH standards guarantees quality, safety, and environmental responsibility.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 1/4-20 UNC Torx Plus screw delivers reliable performance in machinery, automotive, and construction assemblies. The zinc-plated alloy steel material provides excellent corrosion resistance, extending service life in outdoor or corrosive settings. With a Rockwell C39 hardness and 120,000 psi tensile strength, it withstands high stress and vibration, reducing the risk of fastener failure. The Torx Plus T27 drive ensures efficient torque application, minimizing tool slippage and enhancing worker safety. Its fully threaded coarse design and Class 3A fit enable quick, precise installations in metal, wood, or composite materials, making it a versatile choice for heavy-duty fastening needs.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 3A fit for high precision, a Torx Plus IP27/T27 drive, and dimensions of 3/4" length, 0.437" head diameter, and 0.132" head height. It meets ASME B18.3 specifications (ASTM F835) and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to industry and environmental standards.
