S-94450A545 2"-12 ANSI/ASME 18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments
• Precise left-hand threading for specialized applications requiring reverse-direction fastening and secure assemblies
• Superior thread engagement with Class 2B fit and extra fine thread spacing, providing enhanced vibration resistance
• Space-saving thin profile (1 3/32" height) ideal for applications with limited clearance while maintaining full functionality
• Industry-standard compliance with ANSI/ASME 18.2.2 specifications, guaranteeing interchangeability and reliable performance
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict regulatory requirements
• Optimized torque transmission with 3" external hex drive design for efficient installation and removal

Professional Applications & Engineering Value

This left hand thin hex nut delivers critical engineering solutions where standard right-hand fasteners cannot be utilized. The extra fine thread configuration provides maximum thread contact area, significantly improving resistance to vibration loosening in high-stress applications such as rotating machinery, conveyor systems, and precision equipment. Manufactured from 18-8 Stainless Steel, these hex nuts maintain structural integrity in corrosive environments including marine, chemical processing, and food-grade applications. The thin profile design addresses space-constrained assemblies while the UN thread type ensures compatibility with standard components. This combination of specialized threading, corrosion-resistant material, and compact design makes it indispensable for maintenance, repair, and specialized manufacturing operations requiring reliable left-hand threaded fasteners.

Specification Summary & Compliance

This precision hex nut features a 2"-12 extra fine thread with Class 2B thread fit per UN standards, ensuring dimensional accuracy and consistent performance. Manufacturing complies with ANSI/ASME 18.2.2 specifications for dimensional and mechanical requirements. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) compliance for chemical safety, demonstrating commitment to environmental regulations and workplace safety standards.