S-91236A810 5/8"-11 x 4" 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 vibration
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
- Partially threaded design with UNC coarse threads allows for faster installation and better grip in various materials
- Class 2A thread fit guarantees consistent, precise engagement for secure fastening without binding
- External hex head with 15/16" width offers easy installation and removal with standard tools
- Compliance with ASME B18.2.1 and ASTM A307 ensures consistent quality and interchangeability in industrial applications
Professional Applications & Engineering Value
This 5/8"-11 UNC hex head screw is engineered to address critical fastening challenges in heavy-duty industrial applications. The steel construction combined with zinc plating provides robust protection against corrosion, making it ideal for outdoor machinery, structural assemblies, and equipment exposed to moisture. The coarse thread design and partial threading enable quick installation in wood, metal, and composite materials, reducing assembly time while maintaining 60,000 PSI tensile strength for secure connections under dynamic loads. Its external hex drive ensures high torque capability, preventing stripping during tightening in high-vibration environments like construction, automotive, and manufacturing sectors.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit per UNC standards, with a thread size of 5/8"-11 and minimum thread length of 1-1/2". It meets ASME B18.2.1 dimensional requirements and ASTM A307 material specifications for carbon steel bolts. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries.
