S-91309A736 1/2"-13 x 6" 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 with zinc plating that protects against rust and extends service life in demanding environments
- High tensile strength of 60,000 psi ensures reliable load-bearing capacity for heavy-duty industrial applications
- Rockwell B69 hardness provides excellent durability and resistance to wear under repetitive stress
- Class 2A thread fit offers consistent assembly with standard nuts and tapped holes, reducing installation time
- Fully threaded design allows for maximum grip and adjustability across the entire 6" length
- External hex drive and hex head enable easy installation and removal with common tools, improving workflow efficiency
- Compliance with ASME B18.2.1 and ASTM A307 guarantees dimensional accuracy and material quality for safe, standardized use
Professional Applications & Engineering Value
Engineered for robust performance, these 1/2"-13 UNC hex head screws are ideal for structural assemblies, machinery frames, and heavy equipment where vibration resistance and long-term reliability are critical. The coarse thread design prevents cross-threading and ensures quick alignment in coarse-grained materials, while the steel construction with zinc plating combats corrosion in industrial settings, reducing maintenance costs. With a tensile strength of 60,000 psi and Rockwell B69 hardness, they handle high-stress applications without failure, making them a trusted choice for construction, automotive, and manufacturing sectors that demand precision and durability under load.
Specification Summary & Compliance
This product adheres to Class 2A thread fit per UNC standards, ensuring precise dimensional tolerances for consistent performance. It meets ASME B18.2.1 specifications and is manufactured from ASTM A307 steel, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material integrity for global industrial use.
