S-90371A070 1 1/4"-7 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection through hot-dipped galvanized steel coating, extending service life in harsh industrial environments
• Reliable heavy-duty performance with Grade 2 strength classification for consistent load-bearing capacity
• Quick installation efficiency with coarse UNC threads that resist cross-threading and simplify assembly
• Precision thread engagement through Class 2B thread fit ensuring secure fastening without binding
• Industry-standard compatibility meeting ASME B18.2.2 specifications for guaranteed interchangeability
• Environmental compliance assurance with RoHS 3 (2015/863/EU) compliance for safe industrial use
• Optimal wrench clearance with standard 1 7/8" hex profile providing secure tool engagement

Professional Applications & Engineering Value

This 1 1/4"-7 UNC hex nut delivers exceptional engineering value through its hot-dipped galvanized steel construction, providing a thick, durable zinc coating that resists rust and corrosion in demanding industrial settings. The coarse thread design ensures rapid installation and superior resistance to vibration loosening, making it ideal for structural applications, heavy machinery, and construction projects where reliability is paramount. Engineered with Class 2B thread fit, this fastener maintains precise tolerances while accommodating minor variations in mating components, reducing assembly time and preventing thread damage. The Grade 2 strength classification provides dependable performance for general industrial applications without the cost premium of higher-grade alternatives, offering optimal value for maintenance, repair, and OEM operations.

Specification Summary & Compliance

This hex nut features 1 1/4"-7 UNC coarse threads with Class 2B thread fit per ASME B18.2.2 specifications, ensuring dimensional accuracy and interchangeability. The fastener maintains a standard hex profile measuring 1 7/8" across flats and 1 1/16" in height. Manufacturing compliance includes ASME B18.2.2 standards for dimensional requirements and RoHS 3 (2015/863/EU) compliance for environmental safety. The Grade 2 strength classification provides reliable mechanical properties for general industrial applications, supported by right-hand thread direction for standard assembly procedures.