S-91251A152 6-32 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.
- Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in demanding industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Hex socket drive design allows for high torque application and easy installation in confined spaces with standard tools.
- Fully threaded body offers consistent clamping force along the entire length, ideal for adjustable or deep-set fastening needs.
- Compliance with ASTM A574 guarantees material quality and manufacturing consistency for dependable engineering use.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as vibration loosening, corrosion, and high-load demands. The 6-32 UNC coarse thread and Class 3A fit provide excellent engagement and resistance to shock, making it suitable for machinery, automotive, and aerospace assemblies where precision and durability are critical. The fully threaded design ensures uniform stress distribution, while the hex drive facilitates quick maintenance and disassembly. Its high Rockwell C37 hardness and robust construction minimize wear, offering long-term reliability in harsh operating conditions.
Specification Summary & Compliance
This screw adheres to inch system measurements with a 7/8" length and 6-32 UNC coarse thread meeting Class 3A tolerance for precise fit. It conforms to ASTM A574 specifications for material and manufacturing quality, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.
