S-90128A750 1/2"-13 x 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 and automotive applications, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in harsh environments and minimizing maintenance needs.
- Class 3A thread fit offers precise, tight-tolerance threading for secure, vibration-resistant connections in critical assemblies.
- 3/8" hex drive and standard socket head allow for easy installation and high torque application with common tools, improving assembly efficiency.
- Partially threaded design enables optimal clamping force distribution, ideal for applications requiring precise grip length and reduced thread wear.
- Coarse UNC threads facilitate quick assembly and disassembly, saving time in maintenance and repair operations.
- Compliance with ASTM A574, RoHS 3, and REACH ensures consistent quality, environmental safety, and suitability for regulated industries.
Professional Applications & Engineering Value
Engineered for demanding environments, this 1/2"-13 UNC Socket Head Cap Screw delivers robust performance in industrial machinery, automotive systems, and heavy equipment. The zinc-plated alloy steel material combats corrosion, while the 170,000 PSI tensile strength and Rockwell C37 hardness prevent stripping and deformation under extreme loads. The Class 3A thread fit and coarse thread design ensure secure, vibration-resistant fastening, reducing downtime in high-stress applications. With a 3/8" hex drive and partially threaded shank, it offers easy installation and precise clamping, making it a reliable choice for engineers seeking durability and compliance in inch-system assemblies.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 3A thread fit for high precision, a minimum thread length of 2", and an overall length of 8". It meets ASTM A574 specifications for socket head cap screws and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and reliability in industrial use.
