S-91255A192 8-32 x 3/8" ASTM F835 Steel Button Head Hex-Drive Screws
Steel 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 reliable performance in demanding industrial environments
- Superior mechanical strength with 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
- Precision thread engagement with Class 3A fit ensuring secure, vibration-resistant fastening
- Easy installation and removal with 3/32" hex drive design providing excellent torque transmission
- Optimized load distribution through rounded button head profile reducing surface stress points
- Wide compatibility with UNC coarse thread spacing for quick assembly in various materials
- Full regulatory compliance meeting ASME, ASTM, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
These black-oxide alloy steel screws deliver critical performance advantages in industrial settings where corrosion resistance and high tensile strength are paramount. The 8-32 UNC coarse thread spacing combined with Class 3A precision thread fit ensures rapid installation and superior vibration resistance in machinery, equipment assemblies, and structural frameworks. The rounded button head design with hex drive provides flush mounting capabilities while maintaining excellent torque transfer during installation. Engineered for heavy-duty fastening applications, these screws prevent stripping and maintain integrity under extreme mechanical stress, making them ideal for automotive, manufacturing, and construction industries where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit precision and UNC coarse thread spacing for optimal performance. Fully compliant with ASME B18.3 dimensional specifications and ASTM F835 mechanical requirements. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for hazardous substance restrictions. The fully threaded design with right-hand thread direction ensures consistent fastening performance across industrial applications.
