S-94450A564 M3 DIN 439B Hex Nuts

Key Features & Benefits at a Glance

• Corrosion-resistant performance with 18-8 stainless steel construction, ideal for humid or chemically aggressive environments.
• Space-saving thin profile at just 1.8mm height, enabling reliable fastening in compact assemblies and tight clearance applications.
• Precise left-hand thread engagement with Class 6H fit, ensuring secure mating with matching left-hand threaded components.
• Fine 0.35mm pitch threading delivers superior vibration resistance and improved load distribution compared to coarse threads.
• Standardized external hex drive conforming to DIN 439B, providing compatibility with common wrenches and consistent torque application.
• Regulatory compliance assurance with RoHS 3 and REACH adherence, meeting stringent environmental and safety standards for industrial use.
• Metric M3 sizing with 5.5mm width, offering a lightweight yet durable solution for precision mechanical and electronic equipment.

Professional Applications & Engineering Value

This M3 thin hex nut with left-hand thread addresses critical challenges in reverse-motion mechanisms and safety-critical assemblies where standard right-hand threads could loosen under rotational forces. Manufactured from 18-8 stainless steel, it provides excellent corrosion resistance for outdoor equipment, marine components, and food processing machinery. The DIN 439B standardized thin profile and external hex drive enable secure fastening in confined spaces—commonly found in robotics, aerospace control systems, and automotive adjustments—while the fine 0.35mm pitch enhances fatigue resistance under dynamic loads. Its Class 6H thread fit guarantees precise alignment, reducing the risk of cross-threading and ensuring long-term reliability in high-vibration environments.

Specification Summary & Compliance

This nut conforms to DIN 439B dimensional standards with a Class 6H thread fit for metric fine threading (M3 x 0.35mm). The left-hand thread direction and thin 1.8mm height profile are precision-manufactured to ensure consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and substance restrictions for industrial fastener applications.