S-91309A712 1/2"-13 x 1" 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, extending service life in harsh industrial environments
- High tensile strength of 60,000 PSI ensures reliable performance under heavy loads and stress
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
- Class 2A thread fit offers consistent, reliable engagement for simplified assembly and disassembly
- Fully threaded design maximizes grip and load distribution across the entire fastener length
- External hex drive allows for high-torque installation with standard tools, reducing assembly time
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality, safety, and environmental responsibility
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 1/2"-13 UNC hex head screws deliver exceptional reliability where failure is not an option. The high-grade steel construction combined with zinc plating provides robust protection against corrosion, making them ideal for outdoor machinery, structural assemblies, and heavy equipment. The coarse UNC threading and Class 2A fit ensure quick, secure fastening even in vibrating environments, reducing maintenance downtime. With a 60,000 PSI tensile strength and fully threaded design, they distribute mechanical stress evenly, preventing joint failure in critical connections. These industrial hex screws are the go-to solution for engineers seeking durability, precision, and compliance in heavy-duty fastening applications.
Specification Summary & Compliance
This 1/2"-13 UNC hex head screw features precise Class 2A thread fit per UNC standards, ensuring consistent dimensional accuracy. Manufactured to meet ASME B18.2.1 specifications with material compliance under ASTM A307. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming adherence to hazardous substance restrictions. The inch measurement system and right-hand thread direction provide compatibility with North American industrial equipment and tooling.
