S-91029A101 M6 x 16 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 170,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc yellow-chromate plating, extending service life in harsh environments
• Optimized thread engagement with Class 6h fit and coarse 1 mm pitch for faster assembly and secure fastening
• Maximum hardness durability at Rockwell C39 to maintain structural integrity under repeated stress
• Full-length threading provides consistent clamping force along the entire 16mm length
• Standard-compliant design meeting ISO 4017/DIN 933 specifications for guaranteed interchangeability
• External hex drive enables high-torque installation with common tools while preventing stripping

Professional Applications & Engineering Value

This Class 12.9 hex head screw delivers critical engineering solutions where failure is not an option. The high-strength steel construction withstands extreme vibrational and dynamic loads in heavy machinery, automotive assemblies, and structural frameworks. The M6 x 1 mm coarse thread design ensures rapid installation while maintaining Class 6h thread fit precision for vibration-resistant connections. Zinc yellow-chromate plating provides sacrificial corrosion protection in industrial environments exposed to moisture and chemicals. As a fully threaded metric fastener, it distributes clamping forces evenly across the entire 16mm length, preventing joint relaxation in high-stress applications.

Specification Summary & Compliance

Manufactured to ISO 4017/DIN 933 specifications with Class 6h thread fit tolerance. The metric coarse thread (M6 x 1 mm) follows standardized pitch dimensions. Class 12.9 strength rating certifies 170,000 psi minimum tensile strength and Rockwell C39 hardness. Compliant with RoHS and REACH environmental directives for industrial use.