S-91247A463 5/8"-18 x 10" 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
- Exceptional tensile strength of 120,000 PSI ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Grade 5 steel construction provides a robust balance of strength and durability, ideal for heavy-duty industrial use.
- Zinc plating finish offers enhanced corrosion resistance, extending the screw's service life in various environments.
- 5/8"-18 UNF fine threading delivers superior holding power and vibration resistance compared to coarse threads.
- Partial threading design allows for precise clamping force and is optimal for applications requiring a non-threaded shoulder.
- Class 2A thread fit ensures easy assembly and interchangeability, streamlining installation processes.
- External hex drive and hex head facilitate quick and secure tightening with standard tools, improving efficiency.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw is engineered to address critical challenges in industrial settings, such as structural integrity under high stress and environmental exposure. The 5/8"-18 UNF fine thread configuration provides excellent resistance to loosening from vibrations, making it ideal for machinery, automotive assemblies, and construction projects. The zinc plating acts as a protective barrier against corrosion, ensuring long-term reliability in humid or outdoor conditions. With a partially threaded shank, it offers controlled clamping in applications like flange connections or where a smooth grip area is needed, preventing damage to materials. Its compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality and performance, reducing downtime and maintenance costs for B2B clients.
Specification Summary & Compliance
This fastener adheres to precise dimensional tolerances, including a Class 2A thread fit for easy assembly and a UNF thread type with fine spacing. It meets manufacturing specifications under ASME B18.2.1 and SAE J429, ensuring reliability in industrial applications. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global use.
