S-94450A544 2"-4 1/2 ANSI/ASME 18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and extended service life
• Reliable left-hand thread engagement for specialized applications requiring reverse-threading security and safety
• Optimized weight and space savings with a thin profile design, reducing material use without compromising strength
• Precise Class 2B thread fit ensures smooth assembly and consistent clamping force for vibration-resistant connections
• Robust UNC coarse threading provides faster installation and reduced risk of cross-threading in industrial settings
• Full compliance with ANSI/ASME 18.2.2 guarantees dimensional accuracy and interchangeability with standard components
• Environmental regulation adherence with RoHS 3 and REACH compliance, meeting global substance restriction standards

Professional Applications & Engineering Value

This left-hand thin hex nut is engineered to solve critical challenges in machinery requiring reverse-threaded fastening systems. The 18-8 stainless steel material delivers excellent corrosion resistance, making it suitable for chemical processing, marine equipment, and outdoor infrastructure where moisture and corrosive agents are prevalent. Its thin hex profile and coarse UNC threads allow for rapid installation in confined spaces and high-vibration environments, reducing assembly time and preventing loosening. The external hex drive offers superior torque transmission with standard tools, ensuring secure connections in heavy-duty industrial applications such as rotating shafts, conveyor systems, and specialized manufacturing equipment.

Specification Summary & Compliance

This nut features a 2"-4 1/2 UNC thread size with Class 2B thread fit for consistent dimensional accuracy. It is manufactured in compliance with ANSI/ASME 18.2.2 specifications, ensuring reliable performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to strict environmental and safety standards for hazardous substances.