S-95140A177 1 1/4"-7 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity with Grade 5 steel construction, providing reliable performance in high-stress industrial environments
• Secure Anti-Loosening Performance through left-hand threading that resists rotational forces in reverse-direction applications
• Optimized Assembly Efficiency with UNC coarse threading for faster installation and reduced cross-threading risks
• Precise Thread Engagement ensured by Class 2B thread fit for consistent clamping force and vibration resistance
• Superior Tool Compatibility with standard external hex drive design accommodating common industrial wrenches
• Enhanced Durability from steel material offering excellent corrosion resistance and long service life
• Regulatory Compliance Assurance meeting RoHS 3 and REACH standards for safe use across regulated industries

Professional Applications & Engineering Value

This Grade 5 steel hex nut delivers critical engineering solutions for demanding applications where reverse-thread security is paramount. The 1 1/4"-7 UNC coarse thread configuration provides superior resistance to vibration-induced loosening in rotating machinery, conveyor systems, and heavy equipment. The left-hand threading specifically addresses applications where standard right-hand threads would naturally loosen under counter-clockwise rotational forces. Manufactured from medium carbon steel, this fastener maintains structural integrity under significant tensile loads while the external hex drive design ensures straightforward installation and removal with standard tools. Ideal for industrial maintenance, manufacturing equipment, and automotive applications requiring reliable reverse-thread security.

Specification Summary & Compliance

This heavy-duty hex nut features precise Class 2B thread fit per UNC standards, ensuring consistent threading engagement across mating components. The fastener meets Grade 5 strength classification with mechanical properties suitable for medium to high-strength applications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance compliance. Physical dimensions include 1 7/8" width across flats and 1 1/16" height for standardized tool compatibility.