S-91938A189 M30 DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Space-saving thin profile (15mm height) allows for use in compact assemblies where standard nuts are too bulky.
• Precise Class 6H thread fit ensures smooth engagement, reduces cross-threading risk, and provides consistent clamping force.
• Reliable fine pitch thread (2mm) offers better vibration resistance and improved load distribution compared to coarse threads.
• Broad industry compliance with DIN 439B and ISO 4035 standards guarantees interchangeability and meets global engineering specifications.
• External hex drive design facilitates easy installation and removal with standard tools, speeding up assembly processes.
• Environmental and safety compliance with RoHS 3 and REACH regulations ensures safe use in regulated industries.

Professional Applications & Engineering Value

This M30 thin hex nut is engineered to solve critical challenges in precision assemblies. Its 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in chemical processing, marine equipment, and food machinery where moisture and corrosive agents are present. The fine pitch metric thread (2mm) enhances vibration resistance, preventing loosening in dynamic loads common in automotive and machinery frames. The thin profile is particularly valuable in confined spaces, such as electronic enclosures or compact mechanical systems, where every millimeter counts. Compliance with DIN 439B and ISO 4035 standards ensures reliability and ease of sourcing for global B2B procurement, supporting efficient maintenance and production cycles.

Specification Summary & Compliance

This nut features a Class 6H thread fit per ISO standards, ensuring dimensional accuracy and compatibility with Class 6g bolts. It adheres to manufacturing specifications of DIN 439B and ISO 4035 for thin hex nuts, with dimensions of 46mm width and 15mm height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from restricted hazardous substances and safe for industrial use.