S-99899A251 M30 DIN 934 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10 strength grade, ensuring reliable performance in high-stress industrial environments.
• Enhanced corrosion resistance and part identification through the blue-dyed steel finish, reducing maintenance needs and improving inventory management.
• Secure and precise fit with Class 6H thread tolerance, minimizing the risk of loosening under vibration and dynamic loads.
• Optimized for heavy-duty applications using coarse M30 x 3.5 mm threads, enabling faster assembly and reduced cross-threading risks.
• Full compliance with DIN 934 standards, guaranteeing dimensional accuracy and interchangeability in metric fastener systems.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting strict industrial safety and regulatory requirements.
• Easy installation and removal with standard external hex drive and 46 mm width, compatible with common wrench tools for efficient maintenance.

Professional Applications & Engineering Value

This M30 hex nut is engineered from blue-dyed steel to address critical challenges in machinery, construction, and heavy equipment sectors. The Class 10 strength rating provides superior clamping force, preventing joint failure in high-vibration settings like automotive assemblies or structural frameworks. Its coarse metric thread (3.5 mm pitch) ensures rapid installation even in dirty or harsh conditions, reducing labor time while the Class 6H thread fit maintains precise engagement with mating bolts. The distinctive blue finish not only offers basic corrosion protection but also enables quick visual identification in complex assemblies, streamlining maintenance workflows. Compliant with DIN 934, this nut delivers consistent performance in ISO-based fastener systems, making it a trusted choice for engineers prioritizing durability, compliance, and operational efficiency.

Specification Summary & Compliance

This hex nut features M30 metric coarse threads with a 3.5 mm pitch and Class 6H thread fit tolerance, manufactured to DIN 934 dimensional standards. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for hazardous substance restrictions. With a strength classification of Class 10, it ensures high mechanical performance for industrial applications.