S-90002A130 5/8"-11 x 1 1/2" ASME B18.2.1, SAE J429 High-Strength Steel Hex Head Screws with Material Certification
High-Strength Steel Hex Head Screws with Material Certification
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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
- Maximum load-bearing capacity with 150,000 psi tensile strength for critical structural applications
- Superior corrosion resistance from zinc yellow-chromate plating in harsh industrial environments
- Exceptional durability with Rockwell C33 hardness to withstand high-stress conditions
- Reliable coarse thread engagement with UNC threading for faster assembly in thick materials
- Precise thread fit with Class 2A tolerance ensuring consistent installation torque values
- Heavy-duty hex head design providing secure tool engagement and high torque application capability
- Full threading coverage along the 1½" length for maximum grip range and adjustment flexibility
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 8 hex head screws deliver exceptional performance where failure is not an option. The steel construction with Rockwell C33 hardness provides the structural integrity needed for construction equipment, machinery frames, and structural steel connections. The zinc yellow-chromate plating offers superior protection against corrosion in outdoor and high-moisture environments, significantly extending service life. With UNC coarse threads and Class 2A thread fit, these fasteners ensure reliable engagement in thick materials while maintaining precise installation characteristics. The external hex drive design allows for high-torque application, making them ideal for heavy machinery assembly and structural steel fabrication where vibration resistance and long-term reliability are critical.
Specification Summary & Compliance
These 5/8"-11 hex head screws feature Class 2A thread fit per UNC standards with precise dimensional accuracy. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring consistent quality and performance. The fully threaded design with right-hand thread direction provides maximum utility across various industrial applications. The zinc yellow-chromate plating meets industry standards for corrosion protection while maintaining the 150,000 psi tensile strength and Rockwell C33 hardness required for demanding mechanical fastening applications.
