S-91236A969 1/2"-13 x 14" 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
- High tensile strength of 60,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure.
- Zinc plating provides excellent corrosion resistance, extending service life in harsh environments and minimizing maintenance needs.
- Coarse UNC threads with Class 2A fit offer faster assembly and secure holding power, ideal for general-purpose and heavy-duty fastening.
- Partial threading design allows for precise clamping force distribution, preventing joint loosening under vibration or load.
- External hex drive and standard hex head enable easy installation with common tools, saving time and labor costs.
- Compliance with ASME B18.2.1 and ASTM A307 standards guarantees consistent quality, dimensional accuracy, and interoperability.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
This 1/2"-13 UNC hex head screw is engineered to address critical challenges in industrial fastening, where vibration resistance, high load capacity, and durability are paramount. The steel construction with Rockwell B69 hardness provides robust strength against shear and tensile stresses, making it suitable for structural assemblies, machinery, and heavy equipment. The zinc plated finish combats corrosion in outdoor or humid settings, while the coarse thread and partial threading enhance grip and prevent loosening in dynamic applications. By meeting ASME B18.2.1 specifications, it ensures precise fit and reliability, reducing downtime and maintenance costs for engineers and procurement teams.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 2A thread fit for standard tolerance and easy assembly. It complies with ASME B18.2.1 and ASTM A307 manufacturing standards, ensuring dimensional consistency and mechanical properties. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substances.
