S-91247A675 7/16"-14 x 1 3/4" 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 for reliable performance in demanding industrial applications
- Zinc plating provides superior corrosion resistance, extending service life in harsh environments
- Grade 5 steel construction with Rockwell C25 hardness ensures durability and resistance to wear
- Coarse UNC threads with Class 2A fit offer faster assembly and reduced cross-threading risks
- External hex drive design allows for high-torque installation with standard tools
- Partial threading configuration provides optimal grip strength while minimizing material usage
- Compliance with major industry standards including ASME B18.2.1 and SAE J429 ensures quality and reliability
Professional Applications & Engineering Value
This 7/16"-14 UNC hex head screw delivers critical engineering value through its Grade 5 steel composition and zinc plating surface treatment, specifically designed to address industrial fastening challenges. The coarse thread pattern combined with Class 2A thread fit ensures rapid installation in structural steel applications, heavy machinery assembly, and construction projects where vibration resistance is paramount. The partially threaded design concentrates clamping force precisely where needed, preventing joint loosening while the external hex drive accommodates high torque requirements. These industrial fasteners solve common issues of corrosion-induced failure and installation inefficiency, making them ideal for heavy-duty applications requiring consistent, long-term performance under stress.
Specification Summary & Compliance
This inch system fastener maintains precise dimensional accuracy with Class 2A thread fit per UNC standards and manufacturing specifications per ASME B18.2.1 and SAE J429. The product fully complies with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring safe usage across industrial sectors while meeting international quality benchmarks for heavy-duty screw applications.
