S-92865A181 5/8"-11 x 4 3/4" 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 load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating that protects against rust and extends service life
- Optimized thread engagement with Class 2A thread fit ensuring smooth assembly and secure fastening
- Enhanced durability from Rockwell C25 hardness that maintains structural integrity under stress
- Industry-standard compatibility with UNC coarse threads that resist loosening in high-vibration environments
- Efficient installation using standard external hex drive tools for quick assembly and disassembly
- Regulatory compliance meeting RoHS 3 and REACH environmental standards for safe industrial use
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The 5/8"-11 UNC coarse thread design provides superior holding power in metal-to-metal connections, while the zinc plating creates a protective barrier against corrosive environments in manufacturing facilities, construction sites, and heavy equipment assemblies. The partially threaded configuration allows for precise clamping force distribution, preventing joint failure in machinery, structural frameworks, and transportation equipment. With its external hex drive and standardized dimensions, this fastener enables efficient maintenance and reduces installation time across various industrial sectors.
Specification Summary & Compliance
Manufactured to ASME B18.2.1 and SAE J429 specifications with Class 2A thread fit tolerance for consistent dimensional accuracy. The 5/8"-11 UNC coarse thread maintains proper engagement while the 4 3/4" length with 1 1/2" minimum thread length ensures adequate fastening surface. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use worldwide.
