S-90044A267 5/16"-24 x 5 1/2" 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 in demanding applications.
- Superior thread precision with Class 3A fit provides tighter tolerances and improved vibration resistance, enhancing assembly integrity and longevity.
- Black-oxide coating on alloy steel offers excellent corrosion resistance and a durable, non-reflective finish suitable for harsh industrial environments.
- Fine thread spacing (UNF) allows for finer adjustments and better clamping force distribution, ideal for precision machinery and equipment.
- Partially threaded design enables secure fastening in specific zones while minimizing thread damage during installation.
- Hex socket drive facilitates easy installation with standard tools, reducing assembly time and improving workplace efficiency.
- High hardness (Rockwell C37) ensures wear resistance and maintains thread integrity over repeated use, lowering maintenance costs.
Professional Applications & Engineering Value
This 5/16"-24 UNF Socket Head Cap Screw is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion. The black-oxide alloy steel construction, combined with a Class 3A thread fit, delivers superior clamping force and fatigue resistance, making it ideal for heavy-duty machinery, automotive assemblies, and precision equipment. Its fine thread spacing ensures secure fastening in applications requiring exact torque control, while the partially threaded rod design prevents cross-threading and simplifies alignment. By meeting ASTM A574 standards, this screw provides consistent quality and reliability, reducing downtime and enhancing operational safety in engineering projects.
Specification Summary & Compliance
This product adheres to Class 3A thread fit for precise dimensional accuracy and UNF fine thread standards. It complies with ASTM A574 manufacturing specifications for high-strength socket head cap screws and is verified as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory alignment for global industrial use.
