S-91251A344 10-32 x 5/8" 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 in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide finish extends service life in harsh or humid environments, minimizing maintenance needs.
- Precise Class 3A thread fit with UNRF fine threads provides secure, vibration-resistant connections for critical assemblies.
- High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Standard hex socket drive allows for easy installation with common tools, speeding up assembly while preventing cam-out.
- Full threading along the 5/8" length ensures maximum grip and adjustability in a variety of material thicknesses.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees material consistency 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 combines high tensile strength and fine UNRF threads to address common challenges like vibration loosening and corrosion. The Class 3A thread fit ensures tight tolerances for precision equipment, machinery, and automotive assemblies, where secure fastening is critical. Its socket head design with a 5/32" hex drive facilitates installation in confined spaces, reducing assembly time while providing consistent torque transfer. Ideal for applications requiring reliable performance under heavy loads, this screw meets rigorous standards, making it a trusted choice for OEMs and maintenance teams seeking durability and regulatory compliance.
Specification Summary & Compliance
This socket head cap screw features a 10-32 UNRF fine thread with Class 3A fit for precise engagement, and is manufactured to ASTM A574 specifications for consistent quality. It fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted substances and safe for various industrial applications.
