S-91251A837 3/4"-10 x 1 1/4" 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 loads, reducing the risk of fastener failure in demanding applications.
- Superior hardness rating of Rockwell C37 provides excellent resistance to wear and deformation, extending service life in high-stress environments.
- Black-oxide finish on alloy steel offers enhanced corrosion resistance and a professional appearance, ideal for industrial settings.
- Class 3A thread fit delivers precise, secure engagement with mating parts, minimizing backlash and improving assembly reliability.
- Coarse UNRC thread design allows for faster installation and easier alignment, saving time in production and maintenance.
- 5/8" hex drive socket head enables high-torque application with standard tools, ensuring tight fastening without stripping.
- Fully threaded shank provides consistent clamping force along the entire length, offering versatility for various joint configurations.
Professional Applications & Engineering Value
This 3/4"-10 socket head cap screw is engineered from black-oxide alloy steel to address critical challenges in heavy machinery, automotive, and construction sectors. The coarse UNRC thread and Class 3A fit ensure rapid, secure fastening even in vibrating environments, reducing maintenance downtime. With a 170,000 psi tensile strength and Rockwell C37 hardness, it withstands high dynamic loads and resists shear forces, making it ideal for structural assemblies and equipment requiring high-strength fasteners. The fully threaded design allows uniform stress distribution, while the 5/8" hex drive facilitates efficient installation with common tools, enhancing productivity in industrial applications.
Specification Summary & Compliance
This screw features a 3/4"-10 UNRC coarse thread with Class 3A tolerance for precise fit, and is manufactured to ASTM A574 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.
