S-90854A172 M8 x 35 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Class 10.9 grade, providing 150,000 psi tensile strength for heavy-duty and high-stress applications
• Superior corrosion resistance due to zinc yellow-chromate plating, extending service life in harsh or outdoor environments
• High hardness and durability with Rockwell C32 hardness, ensuring resistance to wear and deformation under load
• Easy installation and removal with external hex drive and 13mm head width, allowing for standard wrench or socket use
• Optimal thread engagement with fully threaded M8 x 1.25mm coarse pitch design, enabling faster assembly and secure fastening
• Precise fit and interchangeability thanks to Class 6h thread fit and compliance with ISO 4017/DIN 933 standards
• Versatile right-hand threading for standard directional tightening in a wide range of industrial machinery and equipment

Professional Applications & Engineering Value

This M8 hex head screw is engineered to solve critical fastening challenges in demanding industrial environments. The Class 10.9 steel construction and Rockwell C32 hardness provide exceptional resistance to vibration loosening and mechanical stress, making it ideal for heavy machinery, automotive assemblies, and structural frameworks. The zinc yellow-chromate plating offers robust protection against corrosion, significantly reducing maintenance needs in exposed or humid conditions. With its fully threaded coarse pitch design and external hex drive, it ensures quick, reliable installation and high clamp force retention, minimizing downtime in production lines and equipment maintenance. This screw delivers consistent performance where high tensile strength and long-term reliability are non-negotiable.

Specification Summary & Compliance

This fastener features precise M8 x 1.25mm coarse pitch threading with Class 6h thread fit for accurate engagement and interchangeability. It is manufactured in compliance with ISO 4017 / DIN 933 specifications, ensuring dimensional consistency and mechanical properties. The product meets industry standards for high-strength metric screws, with full traceability for quality assurance in industrial and engineering applications.