S-90128A747 1/2"-13 x 7" 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 applications, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in harsh industrial environments.
- Class 3A thread fit offers precise, tight tolerances for secure fastening and vibration resistance in critical assemblies.
- Partially threaded design allows for controlled clamping force and easier alignment in machinery and structural applications.
- 3/8" hex drive enables high-torque installation with standard tools, improving assembly efficiency and reducing stripping risks.
- Coarse UNC threading facilitates quick installation and removal, saving time in maintenance and production cycles.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency, environmental safety, and global regulatory acceptance.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these Socket Head Cap Screws combine zinc-plated alloy steel with a Class 3A thread fit to address common challenges like vibration loosening and corrosion. The partially threaded rod design provides optimal grip in assemblies where precise thread engagement is critical, such as heavy machinery, automotive frames, and construction equipment. With a coarse UNC thread and 3/8" hex drive, they enable rapid installation and high clamping force, reducing downtime in production lines. Ideal for applications requiring 170,000 psi tensile strength and Rockwell C37 hardness, these screws ensure long-term reliability in structural and mechanical systems, minimizing maintenance needs and enhancing operational safety.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 3A fit for precise dimensional accuracy, a minimum thread length of 1 3/4", and a total length of 7". Manufactured in accordance with ASTM A574 specifications, it ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible sourcing and usage in global markets.
