S-91280A964 M30 x 50 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in high-stress applications
• Enhanced wear and corrosion resistance thanks to Rockwell C21 hardness and black steel construction, extending service life in harsh environments
• Easy installation and removal with external hex drive and 46mm head width, allowing for standard tool compatibility and efficient maintenance
• Secure fastening in coarse materials due to M30x3.5mm coarse thread design, providing excellent grip and vibration resistance
• Full-thread engagement along the 50mm length ensures maximum holding power and uniform stress distribution
• Global compliance assurance with ISO 4017 (equivalent to DIN 933), RoHS 3, and REACH standards, meeting international industrial requirements
• Precision threading with Class 6g fit for consistent, reliable mating with nuts and threaded holes, reducing assembly errors

Professional Applications & Engineering Value

This M30 hex head screw is engineered from high-strength steel to address critical industrial challenges, such as structural loosening under dynamic loads and environmental degradation. The coarse thread (3.5mm pitch) and fully threaded design enable rapid installation and robust connections in soft or coarse substrates, common in construction, machinery, and heavy equipment. With a Class 8.8 strength rating and Rockwell C21 hardness, it resists wear and deformation, ensuring long-term reliability in demanding settings like automotive assemblies or infrastructure projects. The external hex drive and right-hand threading simplify maintenance, while compliance with ISO 4017 and environmental standards like RoHS 3 and REACH guarantees safety and interoperability in global supply chains.

Specification Summary & Compliance

This screw features precise metric threading with M30 size, 3.5mm pitch, and Class 6g thread fit per ISO standards, ensuring dimensional accuracy for secure fastening. It adheres to ISO 4017 (equivalent to DIN 933) for hex head screw specifications, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free from hazardous substances and suitable for industrial use without environmental concerns.