S-91290A379 M30 x 50 mm DIN 912 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, 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 rating (Rockwell C37) provides excellent wear resistance, maintaining thread integrity through repeated use.
• Precise Class 5g6g thread fit guarantees smooth installation and secure fastening, reducing assembly time and improving joint reliability.
• Standard hex drive (22mm) allows for easy installation with common tools, enhancing workflow efficiency.
• Fully threaded design offers consistent clamping force along the entire length, ideal for applications requiring uniform pressure distribution.
• Compliance with DIN 912, RoHS 3, and REACH ensures adherence to international quality and safety standards, supporting global procurement requirements.

Professional Applications & Engineering Value

This M30 socket head cap screw is engineered from black-oxide alloy steel to address critical challenges in heavy-duty industrial settings. The Class 12.9 strength rating and 170,000 psi tensile strength make it suitable for high-load applications such as machinery assembly, automotive components, and structural frameworks, where vibration and dynamic stresses are common. The coarse metric thread (M30x3.5mm) and right-hand thread direction facilitate quick installation and removal, reducing downtime in production lines. Its fully threaded rod type ensures even load distribution, preventing joint loosening. By meeting DIN 912 standards, it delivers consistent dimensional accuracy, while the black-oxide surface treatment enhances corrosion resistance, extending service life in demanding environments like manufacturing plants and outdoor equipment.

Specification Summary & Compliance

This product features a metric coarse thread with Class 5g6g thread fit per ISO standards, ensuring precise tolerances for reliable engagement. It complies with DIN 912 for dimensional consistency and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, confirming adherence to environmental and safety regulations without hazardous substances.