S-90044A298 8-32 x 5" 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.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in demanding environments.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and durability, extending service life in industrial settings.
- Partially threaded design with 7/8" minimum thread length allows for optimal grip and alignment, simplifying installation in pre-tapped holes.
- Hex socket drive (9/64") enables high-torque application with standard tools, minimizing stripping and ensuring efficient assembly.
- Rockwell C37 hardness maintains structural integrity under heavy loads, preventing deformation and ensuring long-term reliability.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for safe, global use.
Professional Applications & Engineering Value
This 8-32 UNC thread socket head cap screw is engineered to address critical industrial challenges, such as vibration loosening and material fatigue. The black-oxide alloy steel construction, combined with a coarse thread and right-hand thread direction, ensures rapid installation and secure fastening in machinery, automotive assemblies, and heavy equipment. Its partially threaded rod design concentrates strength where needed, reducing weight without compromising integrity. The hex drive allows for precise torque control in confined spaces, making it ideal for applications requiring high tensile strength and durability, from manufacturing jigs to aerospace components.
Specification Summary & Compliance
This screw features precise Class 3A thread fit per UNC standards, with a thread diameter of 0.164" and coarse spacing for robust engagement. It meets ASTM A574 specifications for high-strength metric socket head cap screws, ensuring consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it is free of hazardous substances, supporting sustainable and safe industrial use worldwide.
