S-91290A059 M2.5 x 30 mm DIN 912 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength: With a 170,000 PSI tensile strength, this screw provides superior load-bearing capacity and resists failure under high-stress conditions.
• Enhanced Corrosion Resistance: The black-oxide coating on alloy steel offers reliable protection against rust and oxidation, extending service life in harsh environments.
• High Hardness for Durability: Hardened to Rockwell C37, the screw maintains its structural integrity and resists wear, stripping, and deformation during repeated use.
• Precise Hex Drive Engagement: The 2 mm hex socket drive ensures secure tool engagement, reducing cam-out risk and allowing for high torque application in confined spaces.
• Optimized Thread Design: The M2.5 x 0.45 mm coarse thread with Class 5g6g fit enables quick assembly, strong grip, and vibration resistance in various materials.
• Full Threading for Maximum Hold: Fully threaded design distributes clamping force evenly along the entire length, enhancing joint stability in critical applications.
• Regulatory Compliance Assurance: Meets DIN 912 standards for dimensional accuracy, and is RoHS 3 and REACH compliant, ensuring safe, eco-friendly use in global markets.

Professional Applications & Engineering Value

This M2.5 socket head cap screw is engineered to address common industrial challenges such as component loosening due to vibration and corrosion-induced failure. Made from black-oxide alloy steel, it combines high Rockwell C37 hardness with excellent corrosion resistance, making it ideal for machinery, automotive assemblies, and precision equipment where reliability is critical. The fully threaded metric coarse thread design ensures rapid installation and robust fastening in metals and composites, while the 2 mm hex drive allows for efficient torque transfer in tight spaces. By adhering to DIN 912 specifications, this screw delivers consistent performance, reducing maintenance needs and downtime in demanding industrial applications.

Specification Summary & Compliance

This screw features precise Class 5g6g thread fit per ISO metric standards, ensuring accurate engagement and reliable performance. It is manufactured in compliance with DIN 912 for dimensional consistency, including head diameter, drive size, and length tolerances. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting environmentally responsible sourcing for industrial use.