S-93031A211 M10 DIN 439B Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction for extended service life in harsh environments
• Space-saving thin profile (5mm height) ideal for applications with limited clearance while maintaining full functionality
• Precise left-hand thread engagement with Class 6H fit ensures reliable performance in reverse-rotation applications
• Fine thread pitch (1.25mm) provides superior vibration resistance and improved clamping force distribution
• Standardized DIN 439B compliance guarantees dimensional accuracy and interchangeability with metric systems
• External hex drive design enables quick installation and removal with standard tools
• Environmental compliance with RoHS 3 and REACH regulations for safe use across regulated industries

Professional Applications & Engineering Value

This M10 left-hand thread hex nut addresses critical engineering challenges in industries where reverse-direction fastening is essential for safety and operational integrity. The 316 stainless steel composition provides exceptional resistance to chemical corrosion, saltwater exposure, and extreme temperatures, making it ideal for marine equipment, chemical processing plants, and food-grade applications. The thin hex nut profile (DIN 439B) offers significant space optimization in compact assemblies while maintaining full thread engagement. The fine metric thread with 1.25mm pitch delivers enhanced vibration resistance, preventing loosening in high-stress environments. This combination of left-hand threading and corrosion-resistant properties makes it particularly valuable for rotating machinery, conveyor systems, and specialized equipment where standard right-hand threads would naturally loosen during operation.

Specification Summary & Compliance

This precision fastener features M10x1.25mm left-hand metric fine threads with Class 6H thread fit tolerance ensuring precise mating with corresponding male threads. Manufactured to DIN 439B standard specifications with dimensions of 17mm width and 5mm height. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial applications worldwide.