S-95195A280 1 1/4"-7 Hex Nuts

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in harsh environments and reduces maintenance costs
• Left-hand thread direction provides secure fastening in applications where standard right-hand threads could loosen from counter-rotational forces
• Class 2B thread fit offers optimal balance between easy assembly and vibration resistance for industrial applications
• Coarse UNC thread pattern enables quicker installation and better performance in materials prone to galling or cross-threading
• Standard external hex profile delivers maximum torque transmission compatibility with common wrenching tools
• Heavy-duty 1-7/8" width provides substantial bearing surface for enhanced load distribution and joint integrity
• RoHS 3 compliance meets international environmental standards for restricted substances in industrial applications

Professional Applications & Engineering Value

This 1-1/4"-7 UNC left hand thread hex nut solves critical engineering challenges in applications where reverse rotation is a concern. The 18-8 stainless steel composition provides exceptional corrosion resistance for outdoor equipment, marine applications, and chemical processing environments where exposure to moisture and corrosive elements would degrade ordinary fasteners. The left-hand thread direction is specifically engineered for machinery with counter-clockwise rotating components, preventing unintended loosening in mixers, pumps, and rotating assemblies. The coarse thread configuration ensures reliable performance in softer materials and applications where debris accumulation might compromise fine threads. With its standard external hex drive and substantial 1-7/8" width, this nut delivers maximum wrenching surface for high-torque applications while maintaining compatibility with standard industrial tools.

Specification Summary & Compliance

This heavy-duty hex nut features precise 1-1/4"-7 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring proper engagement and dimensional accuracy. The manufacturing complies with RoHS 3 (2015/863/EU) environmental directives, making it suitable for regulated industries. The nut maintains inch system measurements with overall dimensions of 1-7/8" width and 1-1/16" height, providing consistent performance in accordance with industrial fastener specifications.