S-94967A652 1/2"-13 x 1 1/2" ASME B18.2.1, ASTM B117, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex 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 corrosion resistance with a black protective coating, ideal for harsh industrial environments and outdoor applications.
- High tensile strength of 120,000 PSI ensures reliable performance under heavy loads and in demanding structural applications.
- Grade 5 strength classification provides a dependable balance of hardness and ductility for versatile industrial use.
- Coarse UNC threading allows for faster installation and reduced risk of cross-threading, improving assembly efficiency.
- Class 2A thread fit offers consistent, reliable engagement with nuts and tapped holes, minimizing the risk of loosening.
- Fully threaded design maximizes grip length and load distribution across the entire fastener.
- External hex drive and hex head enable high torque application with standard tools, ensuring secure fastening.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this 1/2"-13 UNC hex head screw tackles common challenges like vibration-induced loosening and environmental degradation. The black corrosion-resistant coated steel construction provides a durable barrier against moisture, chemicals, and atmospheric exposure, extending service life in machinery, construction, and transportation equipment. Its coarse thread spacing and Class 2A thread fit ensure quick, reliable assembly even in less-than-ideal conditions, reducing installation time and maintenance needs. With a Rockwell C25 hardness and fully threaded shank, it delivers consistent clamping force and resistance to shear and tensile stresses, making it a trusted choice for structural frameworks, automotive assemblies, and industrial machinery where high-strength fasteners are non-negotiable.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit tolerances and UNC coarse thread standards, ensuring precision and interchangeability. It meets ASME B18.2.1 for dimensional consistency, ASTM B117 for corrosion testing, and SAE J429 for mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.
