S-95355A290 1 1/4"-7 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to premium 316 stainless steel construction
• Secure, reliable left-hand thread engagement prevents loosening under counter-clockwise rotational forces
• Optimized coarse UNC threading enables faster assembly and reduced cross-threading risk
• Precise Class 2B thread fit ensures consistent performance and vibration resistance
• Standard external hex profile provides universal compatibility with common wrenches
• RoHS 3 compliance meets stringent environmental regulations for global industrial use
• Robust 1 7/8" width design delivers superior torque transmission and mechanical stability

Professional Applications & Engineering Value

This left-hand thread hex nut solves critical reverse-rotation challenges in industrial machinery, rotating assemblies, and safety-critical applications where standard right-hand threads would naturally loosen. The 316 stainless steel composition provides superior pitting and crevice corrosion resistance compared to 304 grades, making it ideal for chemical processing, marine hardware, and food equipment exposed to chlorides. The coarse UNC thread profile maintains functionality in dirty or high-vibration environments where fine threads would clog or fail. With its external hex drive and standardized dimensions, this nut integrates seamlessly into existing maintenance protocols while providing reliable left-hand threading solutions for specialized mechanical systems.

Specification Summary & Compliance

Manufactured to standard hex nut dimensions (1 7/8" width × 1 1/16" height) with 1 1/4"-7 UNC coarse threads in left-hand direction. Threads are precision-cut to Class 2B tolerance per ASME B1.1 standards, ensuring proper clearance and engagement. Fully compliant with RoHS 3 (2015/863/EU) environmental directives, containing no restricted hazardous substances.