S-91309A716 1/2"-13 x 1 1/2" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-Strength 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 corrosion resistance through zinc plating, extending service life in demanding industrial environments
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B69 hardness provides excellent durability and resistance to deformation
- Coarse UNC threading enables faster installation and better performance in softer materials
- External hex drive design allows for high torque application with standard tools
- Class 2A thread fit ensures consistent, reliable engagement while maintaining easy assembly
- Full threading along the entire 1-1/2" length provides maximum grip and adjustment flexibility
Professional Applications & Engineering Value
This high-strength 1/2"-13 UNC hex head screw delivers exceptional engineering value across multiple industrial sectors. The combination of steel construction with zinc plating addresses critical corrosion concerns in manufacturing facilities, construction sites, and outdoor applications. The coarse thread design proves particularly valuable in materials prone to stripping or where rapid assembly is essential. With external hex drive compatibility, maintenance teams can apply substantial torque using standard wrenches, reducing installation time and tooling requirements. The fully threaded configuration ensures maximum holding power across the entire fastener length, making it ideal for structural connections, heavy machinery assembly, and equipment requiring reliable, vibration-resistant fastening solutions.
Specification Summary & Compliance
This 1/2"-13 UNC hex head screw features Class 2A thread fit per ASME standards, ensuring dimensional accuracy and interchangeability. Manufactured in compliance with ASME B18.2.1 specifications and ASTM A307 material standards, the fastener delivers consistent performance across industrial applications. The product maintains full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements, including the latest SVHC updates as of June 2023, ensuring environmental responsibility and workplace safety.
