S-91280A416 M7 x 25 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with Class 8.8 steel construction providing 110,000 PSI tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating that protects against environmental degradation in industrial settings
• Optimized installation efficiency with external hex drive design allowing for high torque application and secure fastening
• Consistent thread engagement with Class 6h thread fit ensuring precise mating with nuts and threaded components
• Enhanced durability from Rockwell C21 hardness that maintains structural integrity under repeated stress
• Full-length fastening coverage with complete 25mm threading for maximum grip strength across the entire fastener length
• Global compliance assurance meeting ISO 4017, RoHS 3, and REACH standards for international project compatibility

Professional Applications & Engineering Value

These M7 hex head screws deliver critical engineering solutions for industrial assembly challenges where vibration resistance and structural integrity are paramount. The Class 8.8 steel construction provides the optimal balance between strength and ductility, preventing brittle failure in high-stress applications while the coarse thread pitch ensures rapid installation and superior resistance to loosening under dynamic loads. The zinc plated finish creates a sacrificial barrier against corrosion, extending service life in manufacturing environments, automotive assemblies, and machinery where exposure to moisture or chemicals is common. The external hex drive design accommodates standard tools for efficient installation in confined spaces, making these fully threaded metric screws ideal for securing structural components, equipment frames, and heavy-duty enclosures where disassembly for maintenance may be required.

Specification Summary & Compliance

This M7 x 1mm hex head screw maintains precise Class 6h thread fit tolerances according to ISO 4017 specifications (equivalent to DIN 933), ensuring consistent threading performance across industrial applications. The fastener's dimensional accuracy includes a 25mm length with coarse thread spacing and right-hand threading orientation. Manufacturing compliance includes adherence to RoHS 3 (2015/863/EU) restrictions on hazardous substances and full REACH (EC 1907/2006) compliance regarding chemical safety, making these screws suitable for regulated industries and international supply chains.