S-91236A746 1/2"-13 x 11" 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
- Exceptional Tensile Strength – Withstands up to 60,000 psi, providing reliable performance in demanding industrial applications.
- Superior Corrosion Resistance – Zinc plating protects against rust and environmental degradation, extending service life.
- Precision Thread Fit – Class 2A UNC coarse threads ensure easy assembly and secure, vibration-resistant connections.
- Optimized for Heavy-Duty Use – Partially threaded design and Rockwell B69 hardness offer balanced strength and flexibility.
- Industry-Standard Compliance – Meets ASME B18.2.1 and ASTM A307 specifications for consistent quality and interchangeability.
- Easy Installation and Removal – External hex drive and 3/4" head width allow for straightforward tightening with standard tools.
- Environmentally Responsible – Compliant with RoHS 3 and REACH regulations, ensuring safe and sustainable usage.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial fastening, this 1/2"-13 UNC hex head screw addresses critical challenges in construction, machinery assembly, and structural applications. The steel material combined with a zinc-plated finish provides excellent durability and corrosion resistance, reducing maintenance needs in harsh environments. Its partially threaded design concentrates strength where needed while allowing for flexibility in joint connections. The coarse UNC thread and Class 2A fit facilitate quick, secure installations, minimizing the risk of cross-threading and ensuring long-term reliability. Ideal for securing heavy components, this screw delivers consistent performance where high tensile strength and compliance with ASME B18.2.1 standards are paramount.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit tolerances and UNC coarse thread standards, ensuring precise dimensional accuracy. It is manufactured in accordance with ASME B18.2.1 and ASTM A307 specifications, guaranteeing consistent mechanical properties and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility.
