S-91310A546 M8 x 50 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capacity with Class 10.9 high-strength steel construction, ensuring reliable performance under extreme mechanical stress
• Enhanced durability and wear resistance thanks to Rockwell C32 hardness, extending service life in demanding industrial environments
• Secure and stable fastening with M8 coarse thread (1.25mm pitch) and Class 6g thread fit, reducing the risk of loosening under vibration
• Optimized installation efficiency featuring an external hex drive and 13mm head width for easy tool engagement and torque application
• Versatile partial threading with minimum 22mm thread length, providing flexibility for applications requiring both clamped and unthreaded sections
• Full regulatory compliance with ISO 4014/DIN 931 standards, RoHS 3, and REACH, ensuring safety and environmental responsibility
• Robust tensile strength of 150,000 psi, ideal for heavy-duty assemblies requiring high clamp force and structural integrity

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this M8 hex head screw addresses critical challenges in machinery assembly, structural frameworks, and automotive components. The Class 10.9 steel material, combined with a coarse thread design (1.25mm pitch), ensures rapid installation and resistance to vibrational loosening, reducing maintenance downtime. The partially threaded configuration allows for precise clamping in bolted joints, while the external hex drive facilitates high-torque tightening with standard tools. Compliant with ISO 4014/DIN 931 specifications, it guarantees dimensional accuracy and interchangeability, making it a reliable choice for engineers prioritizing high tensile strength and regulatory adherence in demanding environments.

Specification Summary & Compliance

This fastener adheres to ISO 4014/DIN 931 standards, ensuring precise dimensional tolerances and Class 6g thread fit for consistent performance. It is manufactured from high-strength steel with a tensile strength of 150,000 psi and Rockwell C32 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications without hazardous substances.