S-91255A247 10-24 x 1" 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, extending service life in demanding industrial environments
- Superior load-bearing capacity from 120,000 psi tensile strength alloy steel construction for critical applications
- Precision thread engagement with Class 3A fit ensuring vibration-resistant, secure fastening in machinery
- Optimized drive efficiency through hex drive design preventing cam-out during high-torque installation
- Reduced assembly time with coarse UNC threads enabling faster installation compared to fine-thread alternatives
- Enhanced durability with Rockwell C39 hardness maintaining structural integrity under repeated stress
- Regulatory compliance assurance meeting ASME B18.3, ASTM F835, RoHS 3 and REACH standards for global deployment
Professional Applications & Engineering Value
These 10-24 UNC coarse thread screws with black-oxide alloy steel construction address critical industrial fastening challenges where corrosion resistance and structural reliability are paramount. The fully threaded design provides consistent clamping force across the entire 1" length, while the rounded button head profile offers streamlined installation in confined spaces. Engineered for heavy-duty machinery, automotive assemblies, and electrical enclosures, the hex drive configuration ensures positive torque transmission without stripping. The combination of Class 3A thread fit and coarse threading delivers superior vibration resistance, making these industrial screws ideal for applications subject to dynamic loads and thermal cycling.
Specification Summary & Compliance
Manufactured to precise Class 3A thread fit tolerances per UNC standards, these fasteners maintain dimensional accuracy across all critical parameters. Compliance is verified with ASME B18.3 for dimensional requirements and ASTM F835 for mechanical properties. Environmental regulations are fully addressed through RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) adherence, ensuring unrestricted use in regulated markets. The manufacturing process guarantees consistent Rockwell C39 hardness and 120,000 psi tensile strength across production batches.
