S-91236A814 5/8"-11 x 5" 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 that protects against rust in demanding 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 during installation and use
- Coarse UNC threads with Class 2A fit enable faster assembly and better tolerance for minor misalignments
- External hex drive design allows for high-torque installation using standard tools without stripping
- Partially threaded shank offers optimal grip length for secure fastening in structural applications
- Full compliance with ASME B18.2.1/ASTM A307 guarantees consistent quality and interchangeability
Professional Applications & Engineering Value
This 5/8"-11 UNC hex head screw delivers exceptional engineering value for heavy-duty industrial applications where vibration resistance and structural integrity are critical. The zinc plated steel construction provides reliable corrosion protection in manufacturing facilities, construction sites, and machinery assembly. The coarse thread profile ensures rapid installation in steel frameworks, equipment bases, and structural connections, while the partial threading concentrates clamping force precisely where needed. With its external hex drive and substantial 15/16" head width, this fastener withstands high torque requirements without deformation, making it ideal for maintenance, repair, and OEM applications demanding proven performance.
Specification Summary & Compliance
This hex head screw features 5/8"-11 UNC coarse threads with Class 2A thread fit tolerance for reliable engagement. Manufactured to ASME B18.2.1 specifications using ASTM A307 material standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. Dimensions include 5" total length with 1½" minimum thread length, 15/16" head width, and 27/64" head height for consistent performance in inch-system applications.
