S-90128A197 8-32 x 3/4" 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
- Superior corrosion resistance with zinc plating that protects against rust and extends service life in harsh environments
- Exceptional mechanical strength with 170,000 psi tensile strength and Rockwell C37 hardness for reliable performance under high-stress conditions
- Precise thread engagement thanks to Class 3A thread fit and UNC coarse threads, ensuring secure fastening and reduced cross-threading risks
- Easy installation and removal with a standard hex drive (9/64") and socket head design, allowing for efficient torque application in confined spaces
- Full-threaded design provides consistent holding power along the entire 3/4" length, ideal for applications requiring uniform clamping force
- Compliance with industry standards including ASTM A574, RoHS 3, and REACH, guaranteeing material quality and environmental safety
- Versatile right-hand threading compatible with standard UNC components, simplifying sourcing and replacement in industrial assemblies
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these socket head cap screws combine zinc-plated alloy steel construction with UNC coarse threads to address critical fastening challenges. The Class 3A thread fit ensures tight tolerances and vibration resistance, preventing loosening in machinery, automotive, and heavy equipment applications. With a 170,000 psi tensile strength and Rockwell C37 hardness, they withstand extreme loads and repetitive stress, reducing maintenance downtime. The hex drive socket head allows for high-torque installation in tight spaces, making them ideal for assembly lines and precision engineering projects where reliability and compliance with ASTM A574 standards are paramount.
Specification Summary & Compliance
This screw features precise UNC 8-32 coarse threads with Class 3A fit for accurate engagement, a 3/4" length, and fully threaded design. It meets ASTM A574 specifications for high-strength fasteners and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial markets.
