S-90580A204 5/8"-11 ASTM A563 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with black-oxide steel coating, ideal for harsh industrial environments
- Enhanced torque application from the extra wide profile, preventing rounding during high-tension installations
- Reliable coarse threading (UNC) for faster assembly and reduced cross-threading risks in heavy machinery
- Consistent Class 2B thread fit ensuring smooth engagement and vibration resistance in dynamic applications
- High load-bearing capacity backed by ASTM Grade C certification for demanding structural connections
- Regulatory compliance with RoHS 3 and REACH standards, meeting global environmental and safety mandates
- Optimized dimensions (1 1/16" width, 39/64" height) for compatibility with standard wrenches and confined spaces
Professional Applications & Engineering Value
Engineered for heavy-duty industrial fastening, this 5/8"-11 UNC hex nut addresses critical challenges in construction, machinery assembly, and infrastructure projects. The black-oxide steel finish provides a durable barrier against oxidation and chemical exposure, extending service life in outdoor or corrosive settings. Its extra wide profile distributes clamping force evenly, reducing point stress and minimizing loosening under vibration—essential for high-torque applications like structural steel framing, conveyor systems, and agricultural equipment. Combined with ASTM A563 compliance and coarse threading, it ensures rapid installation and dependable performance in time-sensitive operations.
Specification Summary & Compliance
This hex nut adheres to Class 2B thread fit tolerances per UNC coarse thread standards, manufactured under ASTM A563 and ASTM Grade C strength requirements. It fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted hazardous substances. Dimensions include a 5/8"-11 thread size, 1 1/16" width, and 39/64" height for precision integration with compatible bolts and fixtures.
