S-90128A198 8-32 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 in high-stress industrial applications, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in harsh environments.
- Class 3A thread fit offers tighter tolerances for precise assembly and improved vibration resistance in machinery.
- Hex socket drive design allows for high torque application and easy installation in confined spaces.
- Rockwell C37 hardness ensures excellent wear resistance and durability under repetitive loads.
- Full compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety for global supply chains.
- Coarse UNC threading enables quick assembly and disassembly, saving time in maintenance and production cycles.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 8-32 UNC thread socket head cap screw addresses critical needs for strength and reliability. The zinc-plated alloy steel material combats corrosion in outdoor or chemically exposed environments, while the Class 3A thread fit and coarse thread spacing ensure secure fastening in vibrating equipment like motors, conveyors, and heavy machinery. Its hex drive socket head design facilitates installation in tight spaces, making it ideal for precision assemblies in aerospace, automotive, and manufacturing sectors where high tensile strength and compliance with ASTM A574 are non-negotiable for safety and performance.
Specification Summary & Compliance
This socket head cap screw features precise Class 3A thread fit per UNC standards, with a thread size of 8-32 and length of 7/8". It meets ASTM A574 specifications for high-strength fasteners, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible procurement and use in global markets.