S-94811A075 2"-4 1/2 ASME B18.2.2 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
- Enhanced load distribution from the extra wide profile reduces stress concentration and prevents surface damage in heavy-duty assemblies
- Superior corrosion resistance with zinc-plated steel construction ensures long-term reliability in harsh industrial environments
- Quick installation and removal with coarse UNC threads and external hex drive design for efficient maintenance operations
- Precise thread engagement with Class 2B fit provides consistent clamping force and vibration resistance
- Industry-standard compliance with ASME B18.2.2 guarantees dimensional accuracy and interchangeability
- Environmental responsibility through RoHS 3 and REACH compliance for sustainable procurement
- Optimized for large-diameter applications with 2"-4 1/2 thread sizes accommodating substantial structural components
Professional Applications & Engineering Value
These extra wide hex nuts deliver critical engineering advantages in demanding industrial settings where vibration resistance and structural integrity are paramount. The zinc-plated steel construction provides essential corrosion protection for outdoor infrastructure, heavy machinery, and construction applications exposed to environmental elements. The coarse UNC threads enable rapid assembly and disassembly while maintaining secure fastening in high-vibration environments. With their Class 2B thread fit and external hex drive configuration, these nuts ensure reliable performance in structural steel connections, large-scale equipment manufacturing, and industrial maintenance where precise torque application and repeated access are required. The generous 3 1/8" width provides superior wrench engagement for high-torque applications without rounding or tool slippage.
Specification Summary & Compliance
Manufactured to ASME B18.2.2 standards with Class 2B thread fit tolerance for consistent performance across UNC coarse thread applications. Dimensions include 3 1/8" width and 1 31/32" height with right-hand thread direction. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures responsible manufacturing and supply chain transparency.
