S-90498A046 2"-4 1/2 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced load distribution through extra wide profile design, reducing surface pressure and preventing material deformation in heavy-duty applications
• Superior thread engagement with Class 2B thread fit ensures precise mating with male threads for reliable, vibration-resistant connections
• Heavy-duty construction from durable steel provides exceptional strength and longevity in demanding industrial environments
• Standardized compatibility with ASME B18.2.2 specifications guarantees interchangeability and consistent performance across industrial systems
• Optimized installation efficiency with external hex drive design allows for quick assembly using standard wrenching tools
• Environmental compliance assurance with RoHS 3 and REACH regulations meets international safety standards for hazardous substances
• Reliable coarse thread performance with UNC thread pattern resists loosening under vibration and enables faster installation in large-diameter applications

Professional Applications & Engineering Value

These heavy-duty steel hex nuts with extra wide profile are engineered to solve critical challenges in industrial assembly where standard fasteners fail. The substantial 3 1/8" width and 1 31/32" height create an expanded bearing surface that distributes clamping force more effectively, preventing joint relaxation and surface damage in structural steelwork, heavy machinery, and infrastructure projects. The 2"-4 1/2 UNC coarse threads combined with Class 2B thread fit provide optimal clearance for rapid installation while maintaining secure engagement, significantly reducing assembly time in large-scale construction and manufacturing applications. The right-hand threaded external hex drive design ensures compatibility with standard industrial tools, making these nuts ideal for maintenance operations and field service where tool availability may be limited.

Specification Summary & Compliance

These hex nuts feature precision Class 2B thread fit per UNC coarse thread standards with dimensional compliance to ASME B18.2.2 manufacturing specifications. The nuts maintain strict dimensional tolerances across the 2"-4 1/2 thread size range with consistent 3 1/8" width and 1 31/32" height profiles. Environmental compliance is verified through RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current substance restrictions, ensuring safe use in regulated industries and international markets.