S-91864A025 8-32 x 1 1/8" 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.
- Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in demanding industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies, minimizing loosening over time.
- Fully threaded right-hand design with coarse UNC spacing allows for faster installation and higher clamping force in a wide range of materials.
- Hex socket drive (9/64") enables high torque application and easy access in confined spaces, improving assembly efficiency.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency, environmental safety, and suitability for regulated industries.
- Rockwell C37 hardness offers excellent wear resistance, maintaining thread integrity through repeated use.
Professional Applications & Engineering Value
This 8-32 UNC thread socket head cap screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in harsh environments. The black-oxide alloy steel construction provides a durable barrier against moisture and chemicals, while the fully threaded coarse UNC design ensures rapid, secure fastening in machinery, automotive assemblies, and heavy equipment. Its high tensile strength and Class 3A thread fit deliver reliable performance in critical applications, reducing maintenance needs and downtime. Ideal for industrial socket screw uses where precision, strength, and regulatory compliance are paramount.
Specification Summary & Compliance
This screw meets Class 3A thread fit tolerances for precision, adhering to UNC coarse thread standards. It complies with ASTM A574 for material consistency, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) for chemical safety, ensuring suitability for global industrial applications.
