S-90910A525 10-24 x 1 1/4" 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 for extended service life in demanding environments
- Enhanced torque transmission and reduced cam-out with Torx Plus IP25 drive system for reliable, high-torque fastening
- Exceptional thread engagement and vibration resistance with Class 3A thread fit and fully threaded UNC coarse design
- High mechanical strength with 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
- Streamlined, low-profile installation with rounded button head design that minimizes protrusion and snagging
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use
- Optimized for high-volume assembly with standardized 10-24 thread size and 1-1/4" length for consistent performance
Professional Applications & Engineering Value
These zinc-plated alloy steel rounded head screws deliver critical performance advantages in industrial settings where vibration resistance, corrosion protection, and reliable torque transmission are paramount. The Torx Plus IP25 drive system eliminates cam-out issues common in Phillips or standard Torx drives, ensuring consistent clamping force in automated assembly lines and precision equipment. With Class 3A thread fit and UNC coarse threading, these fasteners provide superior engagement in both metals and plastics, reducing the risk of cross-threading while maintaining integrity under dynamic loads. The combination of 120,000 psi tensile strength and fully threaded design makes them ideal for machinery, electrical enclosures, and structural components where joint integrity cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit precision and UNC 10-24 thread specifications. These screws conform to ASME B18.3 dimensional requirements and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 1-1/4" length and 0.361" head diameter provide standardized dimensions for consistent interchangeability across industrial applications.
