S-91280A790 M14 x 70 mm ISO 4014, DIN 931, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Class 8.8 strength grade provides a robust and durable fastening solution suitable for demanding industrial environments.
• Zinc plating finish offers enhanced corrosion resistance, extending the screw's service life in various conditions.
• Partially threaded M14x2mm coarse thread design allows for secure clamping and easier alignment in assembly processes.
• External hex drive and hex head facilitate straightforward installation and removal with standard tools, improving efficiency.
• Compliance with ISO 4014 and DIN 931 standards guarantees dimensional accuracy and interchangeability for consistent quality.
• Rockwell C21 hardness ensures the screw maintains its integrity under mechanical stress and repeated use.

Professional Applications & Engineering Value

This M14 hex head screw is engineered to address critical challenges in heavy-duty industrial settings, such as machinery assembly, structural frameworks, and automotive components. The Class 8.8 steel construction, combined with a zinc plated finish, provides superior resistance to corrosion and wear, minimizing maintenance needs in harsh environments. Its metric coarse thread with a 2mm pitch ensures quick and secure fastening, reducing installation time while maintaining high clamping force. The partially threaded design allows for precise load distribution, preventing joint loosening under vibration. Ideal for applications requiring reliable external hex drive fasteners, this screw delivers consistent performance in construction, manufacturing, and equipment maintenance, supported by its compliance with international standards like ISO 4014 and DIN 931.

Specification Summary & Compliance

This product adheres to precise dimensional tolerances, including a Thread Fit of Class 6h for accurate engagement, and follows ISO 4014 and DIN 931 specifications for thread form and head dimensions. It meets ISO 898 for mechanical properties, ensuring consistent strength and durability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global industrial use.