S-91251A998 3/4"-10 x 20" 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
- Superior tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Exceptional durability from Rockwell C37 hardness and Black-Oxide Alloy Steel provides excellent resistance to wear and corrosion in harsh environments.
- Precise Class 3A thread fit guarantees secure, vibration-resistant connections, minimizing loosening in critical assemblies.
- Partially threaded design allows for optimal clamping force distribution, ideal for applications requiring specific grip lengths.
- 5/8" hex drive facilitates easy installation and removal with standard tools, enhancing assembly efficiency.
- Compliance with ASTM A574 ensures consistent quality and performance, meeting rigorous industrial standards.
- RoHS 3 and REACH compliance confirms environmental and safety adherence, supporting sustainable procurement practices.
Professional Applications & Engineering Value
This 3/4"-10 UNC Socket Head Cap Screw is engineered to address common industrial challenges, such as vibration-induced loosening and corrosion in demanding settings. Made from Black-Oxide Alloy Steel, it offers enhanced corrosion resistance and durability, making it suitable for heavy machinery, construction equipment, and automotive assemblies. The coarse thread and Class 3A fit provide superior grip and stability, reducing maintenance needs in high-load environments. Its partially threaded configuration allows for precise tension control, ensuring reliable performance in structural applications where strength and longevity are critical.
Specification Summary & Compliance
This fastener features a 3/4"-10 UNC coarse thread with Class 3A thread fit for high precision, a minimum thread length of 2", and a length of 20". It complies with ASTM A574 specifications for socket head cap screws, ensuring dimensional accuracy and mechanical properties. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.
