S-90670A279 1 1/4"-7 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 6061 aluminum construction, ideal for harsh industrial environments
• Reliable thread engagement with Class 2B fit ensuring consistent fastening performance
• High-strength durability meeting ASME B18.2.2 standards for demanding applications
• Easy installation and removal with standard external hex drive design
• Environmental compliance with RoHS 3 and REACH regulations for global supply chain compatibility
• Optimized for coarse threading providing faster assembly and reduced cross-threading risks
• Precision dimensional stability with 1-7/8" width and 1-1/16" height for consistent mating

Professional Applications & Engineering Value

Engineered for industrial machinery, structural frameworks, and heavy equipment assemblies, these 1 1/4"-7 UNC coarse thread hex nuts deliver exceptional performance where vibration resistance and long-term reliability are critical. The 6061 aluminum construction provides an optimal strength-to-weight ratio while offering natural corrosion resistance, eliminating the need for additional coatings in many applications. The Class 2B thread fit ensures smooth engagement with mating components, reducing installation time and preventing galling. With ASME B18.2.2 compliance, these nuts maintain dimensional consistency across replacement and OEM requirements, while the coarse thread design excels in applications where debris accumulation or rapid assembly/disassembly are common challenges.

Specification Summary & Compliance

This right-hand thread hex nut features 1 1/4"-7 UNC coarse threading with Class 2B thread fit per ASME B18.2.2 specifications. Dimensional accuracy is maintained with 1-7/8" width across flats and 1-1/16" height. The product fully complies with RoHS 3 (2015/863/EU) with exemption 6(b)-II and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while maintaining aluminum alloy integrity for machining purposes.