S-91255A250 10-24 x 1 1/2" 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
- Precise thread engagement with Class 3A fit ensuring secure fastening and vibration resistance
- Optimized drive efficiency with 1/8" hex drive providing excellent torque transmission and installation control
- Versatile partial threading design allowing for both clamping and alignment functions in assembly operations
- Enhanced clearance profile with rounded button head design minimizing protrusion in confined spaces
- Regulatory compliance assurance meeting international environmental and safety standards for global supply chain integration
Professional Applications & Engineering Value
These 10-24 UNC Black-Oxide Alloy Steel Rounded Head Screws deliver critical engineering solutions for industrial assembly challenges. The coarse thread spacing and Class 3A thread fit provide superior resistance to vibration loosening in machinery, automotive, and electrical enclosure applications. The partially threaded design allows precise control over clamping force while the black-oxide surface treatment offers enhanced corrosion protection without compromising dimensional accuracy. With 120,000 psi tensile strength, these button head screws maintain structural integrity under high stress conditions, making them ideal for critical joints in manufacturing equipment, transportation systems, and heavy-duty frameworks where reliability and compliance with ASME B18.3 and ASTM F835 standards are paramount.
Specification Summary & Compliance
Manufactured to precise Class 3A thread fit tolerances with UNC coarse thread spacing and right-hand threading. Complies with ASME B18.3 dimensional specifications and ASTM F835 performance requirements. Meets RoHS 3 (2015/863/EU) compliance for hazardous substance restriction and REACH (EC 1907/2006) regulations for chemical safety. The 1 1/2" length with 7/8" minimum thread length ensures consistent performance across industrial applications.
