S-91280A326 M6 x 16 mm ISO 4017, DIN 933, SAE J1199, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that extends service life in harsh industrial environments
• Exceptional mechanical strength with Class 8.8 rating providing 110,000 PSI tensile strength for heavy-duty applications
• Precision threading with Class 6h fit and M6x1mm coarse thread ensuring reliable engagement and vibration resistance
• Optimized drive performance through external hex head design offering superior torque transmission and installation efficiency
• Full thread coverage along the 16mm length maximizes grip strength and load distribution across connected components
• Consistent hardness at Rockwell C21 maintains structural integrity under repeated stress and thermal cycling
• Global compliance meeting ISO 4017, DIN 933, and SAE J1199 standards for international project compatibility

Professional Applications & Engineering Value

These M6 hex head screws deliver critical engineering solutions where high-strength fastening meets corrosion challenges. The Class 8.8 steel construction provides reliable performance in structural assemblies, machinery frames, and equipment manufacturing where dynamic loads and vibration are concerns. The zinc plated finish actively protects against oxidation in manufacturing facilities, outdoor installations, and high-humidity environments. With fully threaded design and coarse metric threading, these screws ensure rapid installation and superior clamping force in steel-to-steel applications, automotive components, and industrial maintenance scenarios. The external hex drive accommodates standard tools for efficient assembly while maintaining precise Class 6h thread fit tolerance for consistent joint integrity.

Specification Summary & Compliance

Manufactured to precise metric dimensions with M6x1mm coarse threading and Class 6h thread fit tolerance per ISO standards. These hex head screws comply with ISO 4017, DIN 933, and SAE J1199 manufacturing specifications. The fasteners are fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental and safety regulations for industrial components. The 16mm length and fully threaded configuration maintain dimensional consistency across production batches for reliable integration into engineered systems.