S-91310A147 M14 x 50 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• High hardness rating (Rockwell C32) provides superior resistance to wear and deformation, extending service life in demanding environments.
• Class 6g thread fit guarantees precise, secure mating with nuts and tapped holes, minimizing assembly issues and improving joint integrity.
• Fully threaded design offers consistent clamping force along the entire length, enhancing load distribution and vibration resistance.
• Coarse M14x2mm thread enables quick installation and removal, saving time in maintenance and assembly operations.
• External hex drive allows for easy torque application with standard tools, facilitating efficient tightening in confined spaces.
• Compliance with ISO 4017 ensures dimensional accuracy and interoperability, supporting global engineering standards and quality assurance.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Class 10.9 steel hex head screws address critical challenges in machinery, construction, and automotive sectors where high tensile strength and durability are paramount. The M14 coarse thread with Class 6g fit provides excellent resistance to loosening under dynamic loads, while the fully threaded design ensures uniform stress distribution, reducing the risk of fatigue failures. Made from black steel, these screws offer reliable performance in harsh conditions, and their external hex drive simplifies installation with common tools, enhancing productivity in assembly lines and maintenance workflows. Ideal for structural connections, equipment frames, and high-vibration environments, they deliver consistent reliability and long-term value.

Specification Summary & Compliance

This M14x2mm hex head screw features a Class 6g thread fit per metric standards, ensuring precise dimensional tolerances for secure fastening. Manufactured in compliance with ISO 4017 (equivalent to DIN 933), it meets rigorous quality and performance criteria. The product is also RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, adhering to environmental and safety regulations for hazardous substances, making it suitable for global supply chains and eco-conscious industries.