S-91938A180 M30 DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability
• Space-saving thin profile (15mm height) allowing for compact assembly designs without compromising strength
• Precise thread engagement with Class 6H fit and extra fine 1.5mm pitch, ensuring vibration resistance and secure fastening
• Global compatibility through compliance with DIN 439B and ISO 4035 standards, facilitating international procurement
• Superior torque transmission via external hex drive design, enabling efficient installation with standard tools
• Regulatory compliance assurance with RoHS 3 and REACH adherence, meeting strict environmental and safety standards
• Right-hand thread orientation providing familiar installation for standard industrial applications

Professional Applications & Engineering Value

This M30 thin hex nut delivers critical engineering advantages in precision assemblies where space constraints and corrosion resistance are paramount. Manufactured from 18-8 stainless steel, it effectively combats chemical exposure and oxidation in marine, food processing, and chemical plant applications. The extra fine thread pitch (1.5mm) provides superior resistance to vibrational loosening compared to coarse-thread alternatives, making it ideal for dynamic load equipment, precision machinery, and automotive subsystems. The DIN 439B and ISO 4035 standardization ensures dimensional consistency across global supply chains, while the external hex drive enables rapid installation in confined spaces. This combination of material properties and Class 6H thread fit directly addresses common industrial challenges including maintenance reduction, assembly integrity, and lifecycle cost optimization.

Specification Summary & Compliance

This metric thin hex nut features M30 x 1.5mm extra fine threads with Class 6H thread fit tolerance per ISO standards. Manufacturing conforms to DIN 439B and ISO 4035 dimensional specifications, ensuring 46mm width and 15mm height precision. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and restricted substance adherence for industrial use.