S-94450A218 1/4"-20 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and outdoor applications
• Reliable left-hand threading prevents unintentional loosening in rotating machinery and specialized equipment
• Space-saving thin profile (5/32" height) allows installation in tight clearance areas without compromising strength
• Easy installation and removal with standard external hex drive compatible with common wrenches
• Precise Class 2B thread fit ensures smooth assembly and consistent performance in coarse thread applications
• Coarse UNC threading provides faster installation and better resistance to vibration loosening
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This left-hand thin hex nut delivers critical engineering value in applications where reverse-thread security is paramount. The 18-8 stainless steel construction provides exceptional corrosion resistance, making it suitable for marine equipment, food processing machinery, and chemical processing plants where moisture and corrosive elements are constant challenges. The thin hex nut profile solves space constraint issues in compact assemblies while maintaining full fastener integrity. With UNC coarse threads and Class 2B fit, this nut ensures reliable performance in high-vibration environments like rotating machinery, conveyor systems, and automotive applications where standard right-hand threads might loosen. The external hex drive allows for quick installation with common tools, reducing assembly time and labor costs in industrial maintenance and production lines.

Specification Summary & Compliance

This precision 1/4"-20 UNC left-hand thin hex nut features Class 2B thread fit per standard inch specifications, ensuring proper engagement and reliable performance. The nut measures 7/16" across flats with a height of 5/32", maintaining dimensional accuracy for consistent installation. Manufactured from 18-8 stainless steel with coarse thread spacing, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making it suitable for global industrial applications requiring environmental compliance and material safety standards.