S-91310A427 M30 x 80 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: Class 10.9 strength grade and 150,000 psi tensile strength ensure reliable performance under extreme mechanical stress, reducing the risk of fastener failure.
• Superior Wear Resistance: Rockwell C32 hardness provides excellent durability and resistance to deformation, extending service life in high-vibration environments.
• Optimized Thread Engagement: Coarse Metric M30x3.5 thread with Class 6g fit offers faster assembly and secure fastening, minimizing cross-threading risks.
• Full Threading for Maximum Grip: 80mm fully threaded design ensures consistent clamping force along the entire length, ideal for thick material sections.
• Industry-Standard Compliance: Manufactured to ISO 4017 (DIN 933) specifications, guaranteeing dimensional accuracy and interchangeability with global metric systems.
• Enhanced Installation Efficiency: External hex drive and 46mm head width allow for high-torque application using standard tools, speeding up assembly processes.
• Environmental & Regulatory Safety: RoHS 3 and REACH compliance ensures material safety, supporting sustainable and responsible manufacturing practices.

Professional Applications & Engineering Value

This M30 hex head screw is engineered to address critical challenges in heavy-duty industrial applications, including structural steelwork, machinery assembly, and construction projects. The Class 10.9 high-tensile steel construction provides robust resistance to dynamic loads and fatigue, preventing loosening in high-vibration settings like automotive or manufacturing equipment. The coarse metric thread (M30x3.5) with Class 6g thread fit ensures quick, reliable installation even in conditions where debris or minor misalignments occur, reducing assembly time and maintenance costs. With a fully threaded 80mm length and external hex drive, it delivers uniform stress distribution and easy access for torque tools, making it a dependable choice for securing thick plates, frames, and load-bearing components where failure is not an option.

Specification Summary & Compliance

This fastener meets ISO 4017 (DIN 933) specifications, ensuring precise dimensional standards for metric coarse threads with a Class 6g thread fit tolerance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. The screw is manufactured from steel with a Rockwell C32 hardness and 150,000 psi tensile strength, adhering to stringent quality controls for industrial use.