S-97478A197 M30 x 140 mm DIN 6914, ISO 7412 Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from hot-dipped galvanized steel coating, ideal for outdoor and harsh industrial environments
• Superior tensile strength with Class 10.9 rating (150,000 psi) ensures reliable performance under extreme mechanical stress
• Optimized load distribution through partially threaded design with 98mm grip length for enhanced joint stability
• Precise thread engagement with Class 6g fit and coarse 3.5mm pitch for faster installation and vibration resistance
• High torque capability from external hex drive and 50mm head width, allowing secure tightening in heavy machinery applications
• Consistent hardness performance at Rockwell C32 maintains structural integrity through repeated loading cycles
• Regulatory compliance assurance meeting DIN 6914/ISO 7412 standards for engineering consistency and safety

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these M30 hex head screws deliver critical performance where structural integrity matters most. The hot-dipped galvanized steel construction provides superior protection against rust and chemical exposure, making them ideal for construction frameworks, machinery assembly, and infrastructure projects exposed to weather elements. The partially threaded configuration with precise 42mm thread length ensures optimal stress distribution across connected materials, preventing joint loosening under dynamic loads. With Class 10.9 strength rating and coarse metric threading, these fasteners maintain clamping force in high-vibration environments while allowing quicker installation than fine-thread alternatives. The external hex drive design accommodates standard wrenching tools for efficient maintenance access in confined spaces.

Specification Summary & Compliance

This M30 x 3.5mm hex head screw features Class 6g thread tolerance per metric standards with right-hand coarse threading. Manufacturing complies with DIN 6914/ISO 7412 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across industrial sectors. With Rockwell C32 hardness and 150,000 psi tensile strength, these fasteners maintain performance within specified engineering parameters.