S-91251A085 10-24 x 3 1/2" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket 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 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide finish extends service life in harsh industrial environments.
- Precise Class 3A thread fit provides secure, vibration-resistant connections, minimizing loosening over time.
- High Rockwell C37 hardness offers excellent wear resistance, maintaining thread integrity through repeated use.
- Hex socket drive design allows for easy installation and high torque application in confined spaces.
- Partially threaded shank enables precise clamping force control, ideal for components requiring specific grip lengths.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety for global supply chains.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this black-oxide alloy steel socket head cap screw addresses critical challenges in machinery assembly, automotive systems, and heavy equipment. The UNRC coarse thread design facilitates quick installation and provides superior resistance to vibration loosening, while the 170,000 psi tensile strength and Rockwell C37 hardness ensure durability under dynamic loads. The black-oxide surface treatment significantly enhances corrosion resistance, making it suitable for outdoor or humid environments. Its partially threaded configuration allows engineers to optimize clamping force without compromising joint integrity, reducing maintenance cycles and improving operational reliability in high-strength fastener applications.
Specification Summary & Compliance
This socket head cap screw features a 10-24 thread size with Class 3A thread fit for precise dimensional accuracy, adhering to UNRC coarse thread standards. It meets ASTM A574 specifications for high-strength alloy steel fasteners and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in industrial applications.
