S-91255A246 10-24 x 7/8" 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 prolonged service life in demanding industrial environments
- Superior thread engagement through Class 3A fit UNC coarse threads ensuring reliable, vibration-resistant connections
- High-strength performance with 120,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
- Optimized installation efficiency featuring hex drive design for secure tool engagement and reduced assembly time
- Full-threaded design providing maximum grip length and uniform stress distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.3, ASTM F835, RoHS 3, and REACH standards for quality and safety
- Versatile rounded button head profile offering a low-profile finish while maintaining high clamping force capability
Professional Applications & Engineering Value
Engineered for industrial machinery, automotive assemblies, and heavy equipment, these 10-24 UNC coarse thread rounded head screws deliver critical performance where vibration resistance and structural integrity are paramount. The black-oxide alloy steel construction provides excellent corrosion protection in harsh operating conditions, while the fully threaded Class 3A fit ensures precise engagement that withstands dynamic loads. The combination of 120,000 psi tensile strength and Rockwell C39 hardness makes these hex drive screws ideal for high-stress applications where fastener failure is not an option. The rounded button head design distributes clamping force efficiently while maintaining a clean, professional appearance in visible assemblies.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with Class 3A thread fit tolerance for superior engagement. Complies with ASME B18.3 and ASTM F835 manufacturing specifications, ensuring consistent quality and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features UNC coarse threads with 10-24 thread size and 7/8" length for standardized compatibility across industrial applications.
