S-91251A082 8-32 x 1 3/4" 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Superior thread precision with Class 3A fit provides consistent engagement and vibration resistance, minimizing loosening in dynamic environments.
- Durable black-oxide coating on alloy steel offers enhanced corrosion resistance, extending service life in industrial settings.
- Hex socket drive design allows for high torque application and secure installation in confined spaces, improving assembly efficiency.
- Partially threaded shank enables precise clamping force control, ideal for applications requiring specific grip length.
- Compliance with ASTM A574 guarantees material consistency and manufacturing quality, ensuring repeatable performance.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory acceptance for global industrial use.
Professional Applications & Engineering Value
Engineered for high-performance industrial fastening, these 8-32 thread socket head cap screws address critical challenges in machinery assembly, automotive components, and precision equipment. The black-oxide alloy steel construction combined with Class 3A thread fit provides excellent resistance to vibration and fatigue, preventing unexpected downtime. The coarse UNRC thread facilitates quick installation in tough materials, while the partially threaded design allows optimal stress distribution. Ideal for applications requiring high tensile strength and reliable hex drive engagement, these screws ensure long-term durability in harsh operational environments.
Specification Summary & Compliance
This screw features a Class 3A thread fit with UNRC coarse threads in an 8-32 size, ensuring precise dimensional accuracy per inch system standards. It meets ASTM A574 specifications for material quality and manufacturing consistency. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations for industrial use.
