S-91290A104 M2.5 x 12 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 finish extends service life in harsh industrial environments, minimizing maintenance needs.
• High hardness (Rockwell C37) provides excellent wear resistance and durability, maintaining thread integrity over repeated use.
• Precise Class 5g6g thread fit guarantees smooth assembly and secure fastening, improving installation efficiency.
• Standard hex socket drive (2mm) allows for easy installation with common tools, reducing assembly time and effort.
• Full compliance with DIN 912/ISO 4762 ensures dimensional accuracy and interchangeability, supporting global engineering standards.
• RoHS 3 and REACH compliance meets environmental regulations, making it suitable for use in regulated industries.

Professional Applications & Engineering Value

These M2.5 socket head cap screws are engineered from black-oxide alloy steel to address critical challenges in precision machinery, automotive assemblies, and heavy-duty equipment. The Class 12.9 strength rating and 170,000 psi tensile strength provide reliable clamping force in high-vibration environments, preventing loosening and structural failures. With a coarse thread pitch of 0.45mm and fully threaded design, they offer rapid installation and robust holding power in metals and composites. The black-oxide surface treatment enhances corrosion resistance, making these metric screws ideal for applications exposed to moisture, chemicals, or outdoor conditions, while the standardized DIN 912/ISO 4762 dimensions ensure compatibility with existing tooling and designs.

Specification Summary & Compliance

This socket head cap screw features M2.5 x 0.45mm coarse threads with a Class 5g6g thread fit per ISO metric standards, ensuring precise tolerance control. It is manufactured in accordance with DIN 912 (identical to ISO 4762) for dimensional consistency, and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for industrial use without hazardous substances. The 12mm length and 2mm hex drive provide standardized installation parameters for reliable performance.