S-90128A142 5/16"-24 x 7/8" 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.
- Fine UNF thread spacing provides superior vibration resistance and precise clamping force in demanding applications.
- Zinc-plated alloy steel construction offers excellent corrosion resistance, extending service life in harsh industrial environments.
- Class 3A thread fit guarantees tight tolerances and secure, precise mating with nuts and tapped holes for leak-proof assemblies.
- Fully threaded design allows for maximum adjustability and uniform stress distribution along the entire length.
- Hex socket drive enables high-torque installation with standard tools, minimizing stripping and ensuring efficient assembly.
- Rockwell C37 hardness provides optimal balance of strength and ductility, resisting wear and deformation over time.
Professional Applications & Engineering Value
This 5/16"-24 UNF Class 3A socket head cap screw is engineered to address critical challenges in high-performance assemblies. The zinc-plated alloy steel material combats corrosion in industrial settings, while the fine thread spacing enhances vibration resistance in machinery, automotive, and aerospace applications. Its fully threaded design ensures consistent clamping force across the entire 7/8" length, preventing loosening under dynamic loads. The hex drive allows for precise torque application in confined spaces, making it ideal for industrial fasteners requiring reliability and durability. Compliant with ASTM A574, it meets rigorous standards for high-strength socket head screws used in critical engineering projects.
Specification Summary & Compliance
This screw features a 5/16"-24 UNF thread with Class 3A fit for precise dimensional accuracy and fine thread spacing. It is manufactured in accordance with ASTM A574 specifications, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial and commercial applications without hazardous substances.
