S-90044A512 8-32 x 1 3/4" ASME B18.3, 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 extreme mechanical loads, reducing failure risks in critical assemblies.
- Superior corrosion resistance from the Black-Oxide finish on Alloy Steel, extending service life in harsh industrial environments.
- Precise Class 3A thread fit guarantees tight, secure fastening with minimal backlash, ideal for vibration-prone applications.
- High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity through repeated use.
- Standard hex socket drive (9/64") allows for easy installation with common tools, speeding up assembly processes.
- Full thread coverage along the 1-3/4" length ensures uniform load distribution and consistent clamping force.
- Compliance with ASME B18.3 and ASTM A574 assures adherence to rigorous industrial standards for dimensional accuracy and material quality.
Professional Applications & Engineering Value
This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address common industrial challenges such as component loosening under vibration and corrosion in demanding environments. The UNRC coarse thread design facilitates quick assembly while the Class 3A thread fit ensures precise engagement, minimizing the risk of cross-threading in automated production lines. Its high tensile strength and Rockwell C37 hardness make it suitable for heavy-duty machinery, automotive systems, and precision equipment where durability and reliability are paramount. The right-hand thread and standard socket head provide compatibility with existing tooling, streamlining maintenance and reducing downtime in industrial settings.
Specification Summary & Compliance
This screw features an 8-32 thread size with Class 3A thread fit per UNRC standards, ensuring tight tolerances for secure fastening. It complies with ASME B18.3 for dimensional specifications and ASTM A574 for material quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use.
