S-91280A966 M30 x 80 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 rating and 110,000 psi tensile strength for reliable performance in high-stress environments
• Exceptional wear resistance due to Rockwell C21 hardness, ensuring prolonged service life under repetitive loading conditions
• Optimized thread engagement through Class 6g thread fit and coarse 3.5mm pitch, enabling faster installation and reduced cross-threading risks
• Maximum grip surface provided by the 46mm hex head design, allowing higher torque application with standard tools
• Complete thread coverage across the 80mm length for uniform stress distribution and enhanced joint integrity
• Corrosion-resistant black finish that maintains structural integrity while providing basic protection in industrial settings
• Global compliance assurance meeting ISO 4017 mechanical specifications while adhering to RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

These M30 hex head screws deliver critical engineering reliability for heavy machinery assembly, structural steel connections, and industrial equipment manufacturing. The Class 8.8 steel construction provides optimal strength-to-weight ratio, resisting deformation under dynamic loads while the coarse metric thread design ensures rapid installation in thick materials and castings. The fully threaded configuration eliminates weak points along the fastener length, distributing clamp force evenly across the entire joint. With external hex drive compatibility and standardized ISO 4017 dimensions, these screws integrate seamlessly into existing maintenance protocols and tool systems, reducing assembly time and replacement part complexity in manufacturing plants, construction projects, and automotive applications.

Specification Summary & Compliance

Manufactured to ISO 4017 dimensional standards (equivalent to DIN 933) with Class 6g thread tolerance for precise fitment. The metric coarse thread (M30x3.5) follows standardized pitch specifications while the 80mm length maintains consistent diameter throughout. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmentally responsible manufacturing and safe usage across international markets.