S-91290A221 M5 x 6 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength with Class 12.9 rating and 170,000 psi tensile strength ensures reliable performance in high-stress applications.
• Superior corrosion resistance from the black-oxide coating extends service life in harsh industrial environments.
• Precise torque application enabled by the 4 mm hex drive and standard socket head profile for secure, slip-free fastening.
• Optimized thread engagement with M5 x 0.8 mm coarse thread and Class 5g6g fit provides consistent clamping force and vibration resistance.
• High durability supported by Rockwell C37 hardness, maintaining structural integrity under repeated loads.
• Broad compatibility with DIN 912/ISO 4762 standards ensures interchangeability and reliable performance in global engineering projects.
• Environmental compliance with RoHS 3 and REACH regulations guarantees safe use in regulated industries.

Professional Applications & Engineering Value

This Class 12.9 alloy steel socket head cap screw is engineered to address critical challenges in high-performance assemblies, such as machinery, automotive systems, and precision equipment. The black-oxide surface treatment provides a robust barrier against moisture and chemicals, reducing failure risks in corrosive environments. With its fully threaded M5 metric coarse thread design, it ensures uniform load distribution and excellent resistance to loosening under vibration. The 4 mm hex drive allows for efficient installation in confined spaces, enhancing productivity in automated or manual assembly lines. By meeting DIN 912/ISO 4762 specifications, this screw delivers consistent dimensional accuracy and strength, making it a trusted choice for engineers seeking reliability and long-term cost savings in demanding applications.

Specification Summary & Compliance

This product features precise metric thread dimensions with M5 x 0.8 mm coarse thread and Class 5g6g thread fit for accurate assembly. It adheres to DIN 912/ISO 4762 manufacturing standards, ensuring dimensional consistency and performance reliability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms its suitability for environmentally conscious industrial use.