S-91355A100 10-24 x 3/8" ASME B18.3, ASTM F835 Steel Flanged Button Head Hex-Drive Screws
Steel Flanged Button Head Hex-Drive 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
- Exceptional corrosion resistance with black-oxide coating for extended service life in demanding industrial environments
- Superior thread engagement with Class 3A fit ensuring precise, vibration-resistant fastening in critical applications
- High-strength alloy steel construction delivering 120,000 psi tensile strength for reliable performance under heavy loads
- Enhanced torque transmission through 1/8" hex drive design preventing tool slippage during installation
- Wide bearing surface from flanged button head design distributing clamp load effectively across joined materials
- Quick installation advantage with UNC coarse threads enabling faster assembly compared to fine-thread alternatives
- Industry compliance assurance meeting ASME B18.3 specifications for consistent quality and dimensional accuracy
Professional Applications & Engineering Value
These black-oxide alloy steel rounded head screws provide engineering solutions where vibration resistance and corrosion protection are critical. The fully threaded UNC coarse pattern ensures rapid installation in production environments while maintaining Class 3A thread fit precision for secure fastening in machinery, automotive assemblies, and electrical enclosures. The flanged button head design eliminates the need for separate washers, reducing component count and assembly time. With Rockwell C39 hardness and 120,000 psi tensile strength, these hex drive screws withstand extreme mechanical stresses in heavy-duty industrial applications, from manufacturing equipment to structural frameworks.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit tolerances for precision threading. Features 10-24 UNC coarse threads with full threading along the 3/8" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The black-oxide surface treatment on alloy steel substrate provides corrosion resistance while maintaining dimensional stability per industrial fastening standards.
