S-90498A410 1 1/4"-7 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced load distribution from the extra wide profile reduces stress concentration and prevents surface damage in heavy-duty applications
• Superior corrosion resistance with high-grade steel construction ensures long-term reliability in demanding industrial environments
• Quick installation and removal with coarse UNC threads that resist cross-threading and maintain integrity through repeated use
• Precision thread engagement with Class 2B fit provides consistent clamping force and vibration resistance
• Optimized tool access through the external hex drive design allows for high-torque applications with standard wrenches
• Regulatory compliance assurance with RoHS 3 and REACH certifications for global industrial supply chain requirements
• Standardized dimensional accuracy per ASME B18.2.2 ensures reliable interchangeability and replacement compatibility

Professional Applications & Engineering Value

This heavy-duty 1 1/4"-7 UNC extra wide hex nut delivers exceptional performance in critical industrial applications where vibration resistance and structural integrity are paramount. The coarse thread design provides superior engagement in softer materials and high-vibration environments, while the extra wide profile distributes clamping force across a larger surface area to prevent joint loosening. Manufactured from high-strength steel with Class 2B thread fit, this nut maintains precise tolerances for consistent performance in construction equipment, heavy machinery, structural frameworks, and industrial assembly applications. The external hex drive configuration ensures reliable torque application using standard industrial tools, making it ideal for maintenance and manufacturing operations requiring dependable fastening solutions.

Specification Summary & Compliance

This 1 1/4"-7 UNC hex nut features precision Class 2B thread fit with coarse thread spacing for optimal performance. Manufactured to ASME B18.2.2 standards, it maintains dimensional accuracy with a 2" width and 1 7/32" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and chemical safety in industrial applications. The right-hand thread direction and inch system measurement provide compatibility with standard North American industrial equipment and replacement parts.