S-91938A165 M18 DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Space-saving thin profile (9mm height) enables use in tight clearance applications without compromising strength
• Precision Class 6H thread fit provides consistent engagement and reliable torque performance
• Fine thread pitch (1.5mm) delivers enhanced vibration resistance and superior clamping force distribution
• Dual-standard compliance with both DIN 439B and ISO 4035 ensures international compatibility and quality assurance
• External hex drive design allows for standard tool compatibility and efficient installation
• Full regulatory compliance with RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

This M18 thin hex nut addresses critical engineering challenges in precision assemblies where space constraints and corrosion resistance are paramount. The 18-8 stainless steel composition provides excellent protection against oxidation and chemical exposure, making it ideal for marine, food processing, and outdoor equipment applications. The fine thread configuration (1.5mm pitch) significantly improves vibration resistance compared to coarse-thread alternatives, preventing loosening in dynamic load conditions. Manufactured to DIN 439B and ISO 4035 standards, this external hex nut ensures consistent dimensional accuracy across global supply chains. The reduced height profile enables weight savings and compact designs while maintaining full Class 6H thread integrity for secure fastening in automotive, machinery, and structural applications where reliability cannot be compromised.

Specification Summary & Compliance

This metric thin hex nut features M18 x 1.5mm fine threads with Class 6H thread fit tolerance per ISO standards. Dimensions conform to DIN 439B specification with 27mm width and 9mm height. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental directives, ensuring hazardous substance restriction compliance. The right-hand thread configuration follows international metric threading standards for universal compatibility across industrial applications.