S-90910A519 8-32 x 1 1/2" 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 torque transmission with Torx Plus IP15 drive, reducing cam-out and tool wear for reliable installation
- Exceptional corrosion resistance from zinc-plated alloy steel, extending service life in harsh industrial environments
- High load-bearing capacity with 120,000 psi tensile strength and Rockwell C39 hardness for demanding applications
- Precise thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance
- Enhanced durability through fully threaded design and coarse UNC spacing for superior holding power
- Low-profile rounded head design provides flush mounting while maintaining high drive efficiency
- Regulatory compliance with ASME B18.3, RoHS 3, and REACH standards for quality assurance and environmental safety
Professional Applications & Engineering Value
These 8-32 UNC Torx Plus zinc-plated alloy steel rounded head screws deliver exceptional performance in critical industrial applications where vibration resistance and precise torque control are paramount. The Torx Plus IP15 drive system eliminates cam-out issues common in Phillips or standard Torx drives, ensuring consistent clamping force in automated assembly lines. The Class 3A thread fit provides tighter tolerances than standard fasteners, preventing loosening in machinery, electronic enclosures, and structural components. With 120,000 psi tensile strength and Rockwell C39 hardness, these fully threaded screws maintain integrity under extreme mechanical stress, while the zinc plating protects against corrosion in manufacturing, automotive, and heavy equipment applications.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit per UNC specifications and 1-1/2" length tolerance. Complies with ASME B18.3 manufacturing specifications where applicable per ASTM F835. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) compliance for chemical safety. Features right-hand thread direction with coarse spacing and fully threaded design for maximum engagement strength.
