S-90124A800 5/8"-11 x 1 3/4" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws
Steel Wire-Lockable 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 with 120,000 psi rating ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc-plated steel coating extends service life in harsh industrial environments, minimizing maintenance needs.
- Precise Class 2A thread fit with UNC coarse spacing provides easy installation and secure fastening, saving assembly time and labor costs.
- High hardness of Rockwell C25 offers excellent wear resistance, maintaining thread integrity through repeated use and vibration.
- Full threading design allows for maximum grip length and uniform load distribution, enhancing joint stability in heavy machinery.
- External hex drive compatibility enables quick installation with standard tools, improving workflow efficiency on production lines.
- Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality and interchangeability, ensuring project specification adherence.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 5 zinc-plated steel hex head screws deliver robust performance where reliability is critical. The UNC coarse thread design resists loosening under vibration, making them ideal for construction equipment, agricultural machinery, and structural assemblies. The zinc plating provides a sacrificial layer that significantly slows corrosion in outdoor or humid conditions, while the fully threaded configuration ensures maximum engagement in thick materials. With a 1 3/4" length and external hex drive, they offer versatile mounting solutions for frames, brackets, and mechanical components requiring high tensile strength and repeated disassembly capability.
Specification Summary & Compliance
This 5/8"-11 UNC hex head screw features Class 2A thread fit per ASME B18.2.1 specifications, ensuring dimensional accuracy and interchangeability. Manufactured to SAE J429 Grade 5 standards with Rockwell C25 hardness and 120,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming absence of restricted hazardous substances for safe industrial use.
