S-90373A101 M8 x 16 mm ISO 4017, DIN 933 Extreme-Strength Metric Class12.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• High hardness rating (Rockwell C39) provides superior wear resistance and longevity, minimizing replacement needs and maintenance costs.
• Fully threaded M8 coarse pitch design offers excellent grip and holding power, facilitating quick and secure installations in various materials.
• Class 12.9 strength grade guarantees consistent performance for heavy-duty industrial use, supporting critical assembly requirements.
• External hex drive with standard head dimensions (13mm width, 5.3mm height) allows for easy tightening with common tools, improving installation efficiency.
• Compliance with ISO 4017 and DIN 933 standards ensures dimensional accuracy and interchangeability, streamlining procurement and inventory management.
• RoHS 3 and REACH compliant materials meet environmental and safety regulations, making them suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

This Class 12.9 high-strength steel hex head screw is engineered to address common industrial challenges such as vibration loosening and structural fatigue. Its fully threaded M8 coarse pitch design enhances load distribution and resistance to shear forces, making it ideal for heavy machinery, automotive assemblies, and construction projects. The external hex drive ensures straightforward installation with standard wrenches, reducing assembly time and labor costs. By utilizing metric coarse threads and precise Class 6g thread fit, it delivers reliable performance in dynamic environments, preventing joint failure and extending equipment lifespan. This screw is a trusted solution for applications demanding high tensile strength and durability, backed by rigorous standards for consistent quality.

Specification Summary & Compliance

This fastener features an M8 x 1.25 mm coarse thread with Class 6g tolerance for precise fit and optimal performance. It adheres to ISO 4017 and DIN 933 manufacturing specifications, ensuring dimensional accuracy and reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety standards for industrial use.