S-91253A197 8-32 x 3/4" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head 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 tensile strength of 130,000 psi ensures reliable performance under high-stress conditions
- Black-oxide coating on alloy steel provides superior corrosion resistance for extended service life
- Class 3A thread fit guarantees precise engagement and vibration resistance in critical applications
- 82° countersink angle enables flush mounting with standard chamfered holes for clean installations
- Fully threaded design offers maximum grip length and consistent holding power throughout engagement
- Hex drive compatibility with 3/32" tools provides secure installation and removal without slippage
- Industry compliance with ASTM F835, RoHS 3, and REACH ensures regulatory acceptance and environmental safety
Professional Applications & Engineering Value
These 8-32 UNC flat head screws deliver exceptional engineering value across industrial applications where precision fastening and corrosion resistance are paramount. The black-oxide alloy steel construction combined with Rockwell C39 hardness provides outstanding durability in demanding environments, from machinery assembly to electronic enclosures. The coarse thread spacing and Class 3A thread fit ensure rapid installation and reliable performance in vibration-prone applications, while the standard flat head profile with 82° countersink creates seamless surface finishes. These fully threaded fasteners maintain consistent clamping force throughout their engagement length, making them ideal for applications requiring uniform pressure distribution and maximum holding strength in industrial equipment and precision assemblies.
Specification Summary & Compliance
This fastener maintains precise Class 3A thread fit tolerances per UNC standards with coarse thread spacing for optimal engagement. Manufacturing adheres to ASTM F835 specifications for mechanical properties and dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The 82° countersink angle conforms to industry standards for flush mounting applications.
