S-91239A633 M16 x 60 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-oxide coating on alloy steel, extending service life in harsh environments and minimizing maintenance needs.
• High hardness rating of Rockwell C32 provides excellent wear resistance, maintaining thread integrity and drive engagement over repeated use.
• Full threading design allows for maximum grip and uniform load distribution, enhancing joint stability in assembled components.
• Coarse metric thread with Class 6g fit ensures easy installation and secure fastening, reducing assembly time and improving efficiency.
• Rounded button head with hex drive offers a low-profile, aesthetically pleasing finish while enabling high-torque application with standard tools.
• Compliance with ISO 7380, RoHS 3, and REACH guarantees adherence to international standards, supporting safe and sustainable procurement for global projects.

Professional Applications & Engineering Value

This M16x2mm Class 10.9 black-oxide alloy steel rounded head hex screw is engineered to address critical challenges in industrial fastening, such as vibration loosening and environmental degradation. The coarse metric thread and fully threaded design provide superior holding power in materials like steel and cast iron, common in machinery, automotive, and construction sectors. The black-oxide surface treatment enhances corrosion resistance, making it ideal for outdoor or humid conditions where rust can compromise safety. With a high tensile strength and Rockwell C32 hardness, it withstands dynamic loads and repetitive stress, ensuring long-term reliability in heavy-duty assemblies. By integrating ISO 7380 standards, this screw delivers consistent performance, reducing downtime and maintenance costs for engineers and procurement specialists.

Specification Summary & Compliance

This fastener features precise metric threading with a Class 6g thread fit and coarse 2mm pitch, ensuring dimensional accuracy per ISO 7380 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and suitable for environmentally conscious industrial applications. The Class 10.9 strength grade aligns with high-performance requirements, supporting use in critical engineering projects.