S-91247A687 7/16"-14 x 4 1/2" 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
- Superior load-bearing capacity with 120,000 psi tensile strength, ideal for heavy-duty applications requiring reliable fastening under stress.
- Enhanced corrosion resistance from zinc plating, extending service life in industrial environments and reducing maintenance needs.
- High-strength Grade 5 steel construction with Rockwell C25 hardness, ensuring durability and resistance to wear and deformation.
- Coarse UNC threads provide faster installation and better performance in materials prone to stripping or where vibration is a concern.
- External hex drive design allows for easy tightening with standard tools, improving assembly efficiency and reducing labor time.
- Partial threading offers optimal grip and clamping force, minimizing the risk of loosening in dynamic or high-vibration settings.
- Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality, interchangeability, and reliability in professional applications.
Professional Applications & Engineering Value
This 7/16"-14 UNC hex head screw is engineered to address common industrial challenges, such as joint failure under heavy loads and corrosion in harsh environments. Made from Grade 5 steel with a zinc-plated finish, it provides exceptional tensile strength and rust protection, making it suitable for construction, machinery assembly, and automotive applications. The coarse thread design ensures secure fastening in softer materials or where quick installation is critical, while the external hex drive facilitates easy torque application with standard wrenches. By meeting rigorous standards like ASME B18.2.1, this fastener delivers consistent performance, reducing downtime and maintenance costs in demanding settings.
Specification Summary & Compliance
This fastener features precise Class 2A thread fit for reliable engagement and UNC coarse threads with a size of 7/16"-14. It complies with ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and performance consistency. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for sustainable industrial use.
