S-91255A026 10-32 x 7/16" 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 that protects against rust in demanding industrial environments
- Superior thread engagement with Class 3A fine UNF threading ensuring precise, vibration-resistant connections
- Maximum driving torque capability through the 1/8" hex drive design that prevents stripping during installation
- Enhanced durability from alloy steel construction with Rockwell C39 hardness for long-lasting performance
- High-load bearing capacity with 120,000 psi tensile strength suitable for critical structural applications
- Complete thread coverage with fully threaded design providing consistent clamping force along the entire 7/16" length
- Low-profile rounded head design that minimizes protrusion while maintaining secure fastening capability
Professional Applications & Engineering Value
These 10-32 UNF rounded head screws deliver exceptional engineering value in precision assembly applications where space constraints and vibration resistance are critical concerns. The black-oxide alloy steel construction provides superior corrosion protection without compromising the 120,000 psi tensile strength, making them ideal for machinery, automotive components, and electronic enclosures exposed to harsh operating conditions. The Class 3A fine threading ensures tighter tolerances and better vibration resistance compared to standard threads, while the 1/8" hex drive allows for high-torque installation without cam-out issues. The fully threaded design maintains consistent clamping force across the entire engagement length, preventing joint loosening in dynamic load environments common in industrial equipment and manufacturing applications.
Specification Summary & Compliance
Manufactured to Class 3A thread fit with UNF fine threading (10-32) and precise dimensional control meeting ASME B18.3 and ASTM F835 specifications. These screws maintain Rockwell C39 hardness and 120,000 psi tensile strength throughout the 7/16" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets while delivering reliable performance in critical fastening applications.
