S-91247A732 1/2"-13 x 5" ASME B18.2.1, 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 tensile strength of 120,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Zinc plating provides superior corrosion resistance, extending service life in harsh industrial environments.
- Grade 5 classification and Rockwell C25 hardness offer a robust balance of strength and durability for repeated use.
- Coarse UNC threads and Class 2A fit enable quick and easy installation while maintaining secure fastening.
- Partially threaded design allows for precise clamping force on specific joint sections, improving assembly accuracy.
- External hex drive and hex head facilitate straightforward installation with common tools, saving time on the job site.
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations for safe, global use.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 5 hex head screw addresses critical needs in construction, machinery assembly, and structural frameworks where vibration and high loads are common. The zinc plated steel finish combats rust and corrosion, making it ideal for outdoor or humid conditions. With a coarse UNC thread and Class 2A thread fit, it ensures rapid installation and reliable grip in materials like metal and wood, reducing assembly time and minimizing loosening risks. The partial threading design allows for controlled tension distribution, preventing over-tightening and material damage. By meeting ASME B18.2.1 and other standards, it provides a dependable fastening solution that enhances project safety and longevity.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, ensuring consistent performance. It adheres to ASME B18.2.1 and SAE J429 manufacturing specifications, guaranteeing reliability in mechanical properties. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting environmental safety and regulatory requirements for industrial use.
