S-90498A345 9/16"-12 ASME B18.2.2, SAE J995 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 load distribution thanks to the extra wide profile, reducing surface pressure and preventing material damage
- Enhanced durability and corrosion resistance from high-quality steel construction for long service life in harsh environments
- Reliable coarse thread engagement with UNC 9/16"-12 threads for quick assembly and reduced cross-threading risks
- Precise Class 2B thread fit ensuring consistent torque performance and vibration resistance in dynamic applications
- Full compliance with ASME B18.2.2 and SAE J995 standards guaranteeing interchangeability and mechanical reliability
- Easy installation and removal with standard external hex drive compatible with common wrench tools
- Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for global supply chain compatibility
Professional Applications & Engineering Value
This heavy-duty 9/16"-12 UNC hex nut delivers exceptional performance in demanding industrial applications where vibration resistance and structural integrity are critical. The extra wide steel construction provides increased bearing surface, effectively distributing clamp load and preventing joint loosening under dynamic stresses. Engineered with coarse thread design, it enables faster assembly in structural steel, heavy machinery, and transportation equipment while maintaining Class 2B thread fit precision. The external hex drive configuration ensures compatibility with standard tools, streamlining maintenance operations. Meeting ASME B18.2.2 and SAE J995 specifications, this nut provides reliable performance in construction, automotive, and manufacturing sectors where consistent quality and regulatory compliance are mandatory.
Specification Summary & Compliance
Manufactured to exact inch system dimensions: 9/16"-12 UNC coarse thread with Class 2B thread fit tolerance. Complies with ASME B18.2.2 and SAE J995 mechanical and dimensional standards. Features right-hand thread direction and external hex drive style. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, including SVHC requirements as of July 2021.
