S-91290A192 M4 x 80 mm DIN 912, ISO 4762 Alloy Steel Socket 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.
• Superior corrosion resistance from the black-oxide coating extends service life in harsh industrial environments, minimizing maintenance needs.
• High hardness rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive engagement over repeated use.
• Precision Class 5g6g thread fit allows for smooth assembly and secure fastening, reducing installation time and improving joint reliability.
• Partially threaded design offers flexibility for applications requiring unthreaded shank sections, enhancing clamping force control.
• Compliance with DIN 912/ISO 4762 standards guarantees dimensional accuracy and interchangeability, ensuring compatibility with global engineering specifications.
• 3 mm hex drive socket enables easy installation with standard tools, speeding up assembly while preventing stripping and slippage.

Professional Applications & Engineering Value

This M4 socket head cap screw is engineered from black-oxide alloy steel to address critical challenges in heavy-duty industrial settings, such as machinery, automotive, and precision equipment. The Class 12.9 strength rating and metric coarse thread with a 0.7 mm pitch provide superior clamping force and vibration resistance, preventing loosening under dynamic loads. The partially threaded rod type allows for precise load distribution, reducing stress concentration in assembled components. With a right-hand thread direction and standard socket head profile, it ensures quick, tool-friendly installation, minimizing downtime in production lines. Ideal for applications demanding high reliability, this screw's corrosion-resistant coating and compliance with DIN 912/ISO 4762 make it a trusted choice for engineers seeking durability and performance in metric fasteners.

Specification Summary & Compliance

This product adheres to precise dimensional tolerances, including a Class 5g6g thread fit per ISO metric standards, ensuring consistent thread engagement. It meets DIN 912 and ISO 4762 specifications for socket head cap screws, covering head diameter, drive size, and thread dimensions. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms it is free from hazardous substances, supporting safe and sustainable industrial use.