S-91247A632 3/8"-16 x 2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 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 120,000 psi ensures reliable performance in heavy-duty and structural applications, reducing the risk of fastener failure.
- Zinc plating provides excellent corrosion resistance, extending service life in various industrial environments and reducing maintenance needs.
- Grade 5 steel construction with Rockwell C25 hardness offers superior durability and resistance to wear, ideal for high-stress assemblies.
- Partially threaded design with UNC coarse threads allows for easier alignment and faster installation, saving time on the production line.
- Class 2A thread fit and external hex drive ensure consistent, secure tightening with standard tools, minimizing assembly errors.
- Compliance with ASME B18.2.1 and SAE J429 standards guarantees interchangeability and reliability in mechanical systems.
- RoHS 3 and REACH compliance ensures environmental safety and meets regulatory requirements for global supply chains.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw is engineered to address common industrial challenges, such as vibration loosening and corrosion in harsh environments. The zinc plated finish provides a protective barrier against moisture and chemicals, making it suitable for outdoor machinery, automotive assemblies, and construction equipment. With a coarse UNC thread and partial threading, it offers optimal grip and ease of use in materials like metal and wood, reducing installation time while maintaining high tensile strength. Ideal for heavy-duty applications, this fastener ensures long-term reliability in frameworks, brackets, and mechanical joints, supported by its compliance with ASME B18.2.1 and SAE J429 standards for consistent performance.
Specification Summary & Compliance
This hex head screw features a 3/8"-16 UNC thread with Class 2A fit for precise dimensional accuracy, ensuring smooth engagement and interchangeability. It adheres to ASME B18.2.1 and SAE J429 manufacturing specifications, with a minimum thread length of 1" and overall length of 2". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in regulated industries.
