S-91029A102 M6 x 20 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: Class 12.9 strength rating and 170,000 psi tensile strength ensure reliable performance in high-stress applications, minimizing the risk of fastener failure.
• Superior Corrosion Resistance: Zinc yellow-chromate plating provides a durable protective barrier, extending the screw's service life in challenging industrial environments.
• Optimized for High-Torque Assembly: The external hex head design allows for secure tool engagement, enabling efficient installation and removal with common wrenches.
• Guaranteed Interchangeability: Manufactured to DIN 933 and ISO 4017 standards, ensuring precise dimensional accuracy and compatibility with other metric components.
• Maximum Grip and Fastening Security: Fully threaded M6 x 1mm coarse pitch design provides superior holding power across the entire 20mm length.
• Enhanced Durability: Rockwell C39 hardness offers excellent resistance to wear and deformation, maintaining integrity under repeated loads.
• Streamlined Sourcing: Right-hand thread and metric sizing simplify procurement and inventory for global engineering and maintenance teams.

Professional Applications & Engineering Value

This M6 hex head screw is engineered to solve critical fastening challenges in demanding sectors. The Class 12.9 high-tensile steel core provides the structural integrity needed for heavy machinery, automotive assemblies, and construction equipment, where vibration and dynamic loads are common. The fully threaded design with a coarse pitch ensures rapid installation and a secure grip in a variety of materials, from steel frames to heavy-duty plastics. The zinc yellow-chromate plating is a key feature for outdoor or corrosive environments, significantly reducing maintenance cycles and replacement costs. By conforming to DIN 933 / ISO 4017, this metric fastener guarantees precision and reliability, making it a trusted component for OEMs and MRO operations focused on safety and longevity.

Specification Summary & Compliance

This screw features an M6 x 1mm thread with a Class 6h thread fit for standard tolerance applications. It is manufactured in compliance with the dimensional and mechanical specifications of DIN 933 and ISO 4017. The product is fully threaded with a right-hand thread direction. As a steel component with a zinc plating, it is typically compliant with common industry regulations such as RoHS and REACH, ensuring it is free from hazardous substances for most industrial uses.